LGDataverses: src/main/java/edu/harvard/iq/dataverse/dataaccess/FileAccessObject.java annotate

author	Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date	Tue, 08 Sep 2015 17:00:21 +0200
parents
children

rev	line source
10 a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	1 /*
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	2 Copyright (C) 2005-2012, by the President and Fellows of Harvard College.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	3
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	4 Licensed under the Apache License, Version 2.0 (the "License");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	5 you may not use this file except in compliance with the License.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	6 You may obtain a copy of the License at
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	7
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	8 http://www.apache.org/licenses/LICENSE-2.0
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	9
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	10 Unless required by applicable law or agreed to in writing, software
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	11 distributed under the License is distributed on an "AS IS" BASIS,
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	13 See the License for the specific language governing permissions and
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	14 limitations under the License.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	15
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	16 Dataverse Network - A web application to share, preserve and analyze research data.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	17 Developed at the Institute for Quantitative Social Science, Harvard University.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	18 Version 3.0.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	19 */
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	20
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	21 package edu.harvard.iq.dataverse.dataaccess;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	22
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	23 // java core imports:
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	24 import java.io.IOException;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	25 import java.io.File;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	26 import java.io.InputStream;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	27 import java.io.FileInputStream;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	28 import java.util.List;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	29 import java.util.Iterator;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	30
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	31
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	32 // DVN App imports:
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	33 import edu.harvard.iq.dataverse.DataFile;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	34 //mport edu.harvard.iq.dataverse.TabularDataFile;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	35 import edu.harvard.iq.dataverse.datavariable.DataVariable;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	36 import java.io.FileOutputStream;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	37 import java.nio.channels.Channel;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	38 import java.nio.channels.WritableByteChannel;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	39 import java.nio.file.Files;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	40 import java.nio.file.Path;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	41 import java.nio.file.Paths;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	42
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	43 public class FileAccessObject extends DataAccessObject {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	44
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	45 public FileAccessObject () throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	46 this(null);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	47 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	48
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	49 public FileAccessObject(DataFile file) throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	50 this (file, null);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	51
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	52 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	53
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	54 public FileAccessObject(DataFile file, DataAccessRequest req) throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	55
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	56 super(file, req);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	57
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	58 /*
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	59 if (file != null && file.isRemote()) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	60 //return null;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	61 throw new IOException ("not a local file.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	62 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	63 */
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	64
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	65 this.setIsLocalFile(true);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	66 this.setIsDownloadSupported(true);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	67 this.setIsNIOSupported(true);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	68 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	69
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	70 private boolean isReadAccess = false;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	71 private boolean isWriteAccess = false;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	72
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	73 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	74 public boolean canAccess (String location) throws IOException{
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	75 return true;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	76 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	77
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	78 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	79 public boolean canRead () {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	80 return isReadAccess;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	81 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	82
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	83 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	84 public boolean canWrite () {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	85 return isWriteAccess;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	86 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	87 //public void open (String location) throws IOException{
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	88
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	89 //}
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	90
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	91 //private void open (DataFile file, Object req) throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	92 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	93 public void open () throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	94
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	95 DataFile file = this.getFile();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	96 DataAccessRequest req = this.getRequest();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	97
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	98
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	99 //if (req instanceof HttpServletRequest) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	100 // if (((HttpServletRequest)req).getParameter("noVarHeader") != null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	101 // this.setNoVarHeader(true);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	102 // }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	103 //}
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	104
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	105 if (req.getParameter("noVarHeader") != null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	106 this.setNoVarHeader(true);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	107 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	108 InputStream in = openLocalFileAsStream(file);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	109
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	110 if (in == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	111 throw new IOException ("Failed to open local file "+file.getFileSystemLocation());
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	112 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	113
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	114 this.setInputStream(in);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	115
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	116 this.setSize(getLocalFileSize(file));
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	117
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	118 this.setMimeType(file.getContentType());
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	119 this.setFileName(file.getFileMetadata().getLabel());
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	120
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	121
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	122 if (file.getContentType() != null &&
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	123 file.getContentType().equals("text/tab-separated-values") &&
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	124 file.isTabularData() &&
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	125 file.getDataTable() != null &&
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	126 (!this.noVarHeader())) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	127
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	128 List datavariables = file.getDataTable().getDataVariables();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	129 String varHeaderLine = generateVariableHeader(datavariables);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	130 this.setVarHeader(varHeaderLine);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	131 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	132
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	133 // The HTTP headers for the final download (when an HTTP download
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	134 // of the file is requested, as opposed to the object being read by
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	135 // another part of the system). This is a TODO -- need to design this
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	136 // carefully.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	137
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	138 // setDownloadContentHeaders (localDownload);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	139
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	140
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	141 this.setStatus(200);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	142 } // End of initiateLocalDownload;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	143
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	144 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	145 public String getStorageLocation() {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	146
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	147 Path studyDirectoryPath = this.getFile().getOwner().getFileSystemDirectory();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	148
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	149 if (studyDirectoryPath == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	150 return null;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	151 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	152 String studyDirectory = studyDirectoryPath.toString();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	153
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	154 return Paths.get(studyDirectory, this.getFile().getFileSystemName()).toString();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	155 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	156
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	157 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	158 public Path getFileSystemPath() throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	159 if (this.getFile() == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	160 throw new IOException("No datafile defined in the Data Access Object");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	161 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	162
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	163 if (this.getFile().getOwner() == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	164 throw new IOException("Data Access: no parent dataset defined for this datafile");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	165 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	166
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	167 Path studyDirectoryPath = this.getFile().getOwner().getFileSystemDirectory();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	168
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	169 if (studyDirectoryPath == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	170 throw new IOException("Could not determine the filesystem directory of the parent dataset.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	171 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	172 String datasetDirectory = studyDirectoryPath.toString();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	173
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	174 if (this.getFile().getFileSystemName() == null \|\| "".equals(this.getFile().getFileSystemName())) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	175 throw new IOException("Data Access: No local storage identifier defined for this datafile.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	176 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	177
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	178 return Paths.get(datasetDirectory, this.getFile().getFileSystemName());
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	179
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	180 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	181
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	182 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	183 public void delete() throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	184 Path victim = getFileSystemPath();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	185
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	186 if (victim != null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	187 Files.delete(victim);
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	188 } else {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	189 throw new IOException("Could not locate physical file location for the Filesystem object.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	190 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	191 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	192
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	193 @Override
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	194 public void openChannel (DataAccessOption... options) throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	195
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	196 for (DataAccessOption option: options) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	197 // In the future we may need to be able to open read-write
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	198 // Channels; no support, or use case for that as of now.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	199
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	200 if (option == DataAccessOption.READ_ACCESS) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	201 isReadAccess = true;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	202 continue;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	203 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	204
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	205 if (option == DataAccessOption.WRITE_ACCESS) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	206 isWriteAccess = true;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	207 continue;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	208 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	209 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	210
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	211 if (!isReadAccess && !isWriteAccess) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	212 isReadAccess = true;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	213 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	214
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	215 if (isReadAccess) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	216 // TODO:
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	217 // Make sure all the tasks performed by the old-style, InputStream-based
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	218 // method are still taken care of.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	219 openReadableChannel();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	220 } else if (isWriteAccess) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	221 openWritableChannel();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	222 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	223
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	224 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	225
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	226 private void openWritableChannel () throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	227 DataFile datafile = this.getFile();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	228
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	229 if (datafile == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	230 throw new IOException ("Data Access: No Datafile defined in the DataAccessObject.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	231 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	232
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	233 channel = new FileOutputStream(getFileSystemPath().toFile()).getChannel();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	234
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	235 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	236
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	237 private void openReadableChannel () throws IOException {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	238 DataFile datafile = this.getFile();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	239
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	240 if (datafile == null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	241 throw new IOException ("Data Access: No Datafile defined in the DataAccessObject.");
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	242 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	243
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	244 channel = openLocalFileAsStream(datafile).getChannel();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	245 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	246
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	247 // Auxilary helper methods, filesystem access-specific:
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	248
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	249 public long getLocalFileSize (DataFile file) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	250 long fileSize = -1;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	251 File testFile = null;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	252
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	253 try {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	254 testFile = file.getFileSystemLocation().toFile();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	255 if (testFile != null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	256 fileSize = testFile.length();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	257 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	258 } catch (Exception ex) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	259 return -1;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	260 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	261
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	262 return fileSize;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	263 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	264
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	265 public FileInputStream openLocalFileAsStream (DataFile file) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	266 FileInputStream in;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	267
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	268 try {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	269 in = new FileInputStream(file.getFileSystemLocation().toFile());
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	270 } catch (Exception ex) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	271 // We don't particularly care what the reason why we have
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	272 // failed to access the file was.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	273 // From the point of view of the download subsystem, it's a
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	274 // binary operation -- it's either successfull or not.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	275 // If we can't access it for whatever reason, we are saying
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	276 // it's 404 NOT FOUND in our HTTP response.
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	277 return null;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	278 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	279
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	280 return in;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	281 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	282
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	283 private String generateVariableHeader(List dvs) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	284 String varHeader = null;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	285
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	286 if (dvs != null) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	287 Iterator iter = dvs.iterator();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	288 DataVariable dv;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	289
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	290 if (iter.hasNext()) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	291 dv = (DataVariable) iter.next();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	292 varHeader = dv.getName();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	293 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	294
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	295 while (iter.hasNext()) {
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	296 dv = (DataVariable) iter.next();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	297 varHeader = varHeader + "\t" + dv.getName();
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	298 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	299
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	300 varHeader = varHeader + "\n";
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	301 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	302
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	303 return varHeader;
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	304 }
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	305
a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0 Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	306 }

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a50cf11e5178 Rewrite LGDataverse completely upgrading to dataverse4.0