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1 package de.mpiwg.itgroup.annotations.restlet.utils;
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2
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3 /*
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4 * #%L
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5 * AnnotationManager
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6 * %%
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7 * Copyright (C) 2012 - 2015 MPIWG Berlin
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8 * %%
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9 * This program is free software: you can redistribute it and/or modify
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10 * it under the terms of the GNU Lesser General Public License as
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11 * published by the Free Software Foundation, either version 3 of the
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12 * License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful,
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15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 * GNU General Lesser Public License for more details.
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18 *
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19 * You should have received a copy of the GNU General Lesser Public
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20 * License along with this program. If not, see
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21 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
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22 * #L%
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23 */
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24
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25 import org.restlet.Request;
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26 import org.restlet.Response;
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27 import org.restlet.data.Reference;
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28 import org.restlet.routing.Filter;
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29
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30 /**
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31 * Filter that adds a prefix path to all internally generated URLs.
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32 *
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33 * @author casties
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34 *
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35 */
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36 public class UrlPrefixFilter extends Filter {
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37
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38 private String prefix = null;
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39
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40 /**
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41 * Set the prefix to add.
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42 *
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43 * @param prefix
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44 */
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45 public void setPrefix(String prefix) {
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46 if (!prefix.startsWith("/")) {
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47 prefix = "/" + prefix;
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48 }
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49 this.prefix = prefix;
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50 }
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51
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52 @Override
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53 protected int beforeHandle(Request request, Response response) {
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54 // get ref to change
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55 Reference ref = request.getResourceRef();
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56 String path = ref.getPath();
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57 // add prefix to path
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58 ref.setPath(prefix + path);
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59 // change baseRef as well
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60 Reference baseRef = ref.getBaseRef();
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61 String basePath = baseRef.getPath();
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62 // add prefix to base ref path
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63 baseRef.setPath(prefix + basePath);
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64 return super.beforeHandle(request, response);
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65 }
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66
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67 }
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