| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.oodt.pcs.services; |
| |
| //JDK imports |
| import java.net.MalformedURLException; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Vector; |
| |
| //JAX-RS imports |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| |
| //JSON imports |
| import net.sf.json.JSONObject; |
| |
| //OODT imports |
| import org.apache.oodt.pcs.pedigree.Pedigree; |
| import org.apache.oodt.pcs.pedigree.PedigreeTree; |
| import org.apache.oodt.pcs.pedigree.PedigreeTreeNode; |
| import org.apache.oodt.pcs.util.FileManagerUtils; |
| |
| /** |
| * |
| * Exposes the {@link Pedigree} API of the PCS to provide an upstream and |
| * downstream lineage of a particular OODT {@link Product} using JAX-RS. |
| * |
| * @author mattmann |
| * @version $Revision$ |
| * |
| */ |
| @Path("pedigree") |
| public class PedigreeResource extends PCSService { |
| |
| private static final long serialVersionUID = 4851623546718112205L; |
| |
| private Pedigree trace; |
| |
| private FileManagerUtils fm; |
| |
| public PedigreeResource() throws MalformedURLException { |
| this.fm = new FileManagerUtils(PCSService.conf.getFmUrl()); |
| this.trace = new Pedigree(this.fm, PCSService.conf |
| .isTraceNotCatalogedFiles(), Arrays.asList(PCSService.conf |
| .getTraceProductTypeExcludeList().split(","))); |
| } |
| |
| @GET |
| @Path("report/{filename}") |
| @Produces("text/plain") |
| public String generatePedigree(@PathParam("filename") String filename) { |
| PedigreeTree upstreamTree = this.trace.doPedigree(this.fm |
| .safeGetProductByName(filename), true); |
| PedigreeTree downstreamTree = this.trace.doPedigree(this.fm |
| .safeGetProductByName(filename), false); |
| return this.encodePedigreeAsJson(upstreamTree, downstreamTree); |
| } |
| |
| @GET |
| @Path("report/{filename}/upstream") |
| @Produces("text/plain") |
| public String generateUpstreamPedigree(@PathParam("filename") String filename) { |
| PedigreeTree upstreamTree = this.trace.doPedigree(this.fm |
| .safeGetProductByName(filename), true); |
| return this.encodePedigreeAsJson(upstreamTree, null); |
| } |
| |
| @GET |
| @Path("report/{filename}/downstream") |
| @Produces("text/plain") |
| public String generateDownstreamPedigree( |
| @PathParam("filename") String filename) { |
| PedigreeTree downstreamTree = this.trace.doPedigree(this.fm |
| .safeGetProductByName(filename), false); |
| return this.encodePedigreeAsJson(null, downstreamTree); |
| } |
| |
| private String encodePedigreeAsJson(PedigreeTree up, PedigreeTree down) { |
| Map<String, Object> output = new HashMap<String, Object>(); |
| if (up != null) |
| output.put("upstream", this.encodePedigreeTreeAsJson(up.getRoot())); |
| if (down != null) |
| output.put("downstream", this.encodePedigreeTreeAsJson(down.getRoot())); |
| JSONObject json = new JSONObject(); |
| json.put("pedigree", output); |
| return json.toString(); |
| } |
| |
| private Object encodePedigreeTreeAsJson(PedigreeTreeNode node) { |
| if (node.getNumChildren() > 0) { |
| Map<String, Object> map = new HashMap<String, Object>(); |
| List<Object> list = new Vector<Object>(); |
| for (int i = 0; i < node.getNumChildren(); i++) { |
| list.add(this |
| .encodePedigreeTreeAsJson(node.getChildAt(i))); |
| } |
| map.put(node.getNodeProduct().getProductName(), list); |
| return map; |
| } else { |
| return node.getNodeProduct().getProductName(); |
| } |
| } |
| } |