Mercurial > hg > digilib-old
diff servlet/src/main/java/digilib/io/DocuDirentImpl.java @ 892:ba1eb2d821a2 mvnify
rearrange sources to maven directory standard
author | robcast |
---|---|
date | Tue, 19 Apr 2011 18:44:25 +0200 |
parents | servlet/src/digilib/io/DocuDirentImpl.java@69bc69381ac4 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/servlet/src/main/java/digilib/io/DocuDirentImpl.java Tue Apr 19 18:44:25 2011 +0200 @@ -0,0 +1,149 @@ +/* + * DocuDirent.java -- Abstract directory entry in a DocuDirectory + * + * Digital Image Library servlet components + * + * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * Please read license.txt for the full details. A copy of the GPL may be found + * at http://www.gnu.org/copyleft/lgpl.html + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place, Suite 330, Boston, MA 02111-1307 USA + * + * Created on 15.09.2003 by casties + * + */ +package digilib.io; + +import java.io.File; +import java.util.Map; + +import org.apache.log4j.Logger; + +import digilib.io.FileOps.FileClass; +import digilib.meta.MetadataMap; +import digilib.meta.XMLMetaLoader; + +/** + * Abstract directory entry in a DocuDirectory. + * + * @author casties + * + */ +public abstract class DocuDirentImpl implements DocuDirent { + + /** the file class of this file */ + protected static FileClass fileClass = FileClass.NONE; + /** HashMap with metadata */ + protected MetadataMap fileMeta = null; + /** Is the Metadata valid */ + protected boolean metaChecked = false; + /** the parent directory */ + protected Directory parent = null; + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#checkMeta() + */ + public abstract void checkMeta(); + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#getInput() + */ + public abstract File getFile(); + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#readMeta() + */ + public void readMeta() { + if ((fileMeta != null) || (getFile() == null)) { + // there is already metadata or there is no file + return; + } + // metadata is in the file {filename}.meta + String fn = getFile().getAbsolutePath(); + File mf = new File(fn + ".meta"); + if (mf.canRead()) { + XMLMetaLoader ml = new XMLMetaLoader(); + try { + // read meta file + Map<String, MetadataMap> meta = ml.loadURL(mf.getAbsolutePath()); + if (meta == null) { + return; + } + fileMeta = meta.get(getName()); + } catch (Exception e) { + Logger.getLogger(this.getClass()).warn("error reading file .meta", e); + } + } + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#getName() + */ + public String getName() { + File f = getFile(); + return (f != null) ? f.getName() : null; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#getParent() + */ + public Directory getParent() { + return parent; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#setParent(digilib.io.Directory) + */ + public void setParent(Directory parent) { + this.parent = parent; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#getFileMeta() + */ + public MetadataMap getFileMeta() { + return fileMeta; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#setFileMeta(digilib.io.MetadataMap) + */ + public void setFileMeta(MetadataMap fileMeta) { + this.fileMeta = fileMeta; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#isMetaChecked() + */ + public boolean isMetaChecked() { + return metaChecked; + } + + /** + * @return + */ + public static FileClass getFileClass() { + return fileClass; + } + + /* (non-Javadoc) + * @see digilib.io.DocuDirent#compareTo(java.lang.Object) + */ + public int compareTo(Object arg0) { + if (arg0 instanceof DocuDirentImpl) { + return getName().compareTo(((DocuDirent) arg0).getName()); + } else { + return getName().compareTo((String) arg0); + } + } + + +}