runtime/org.argeo.slc.support.maven/src/main/java/org/argeo/slc/maven/DependencyFileLoader.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.maven;
  17
  18 import java.io.IOException;
  19 import java.util.ArrayList;
  20 import java.util.List;
  21 import java.util.StringTokenizer;
  22
  23 import org.apache.commons.io.IOUtils;
  24 import org.apache.commons.logging.Log;
  25 import org.apache.commons.logging.LogFactory;
  26 import org.argeo.slc.SlcException;
  27 import org.springframework.beans.factory.FactoryBean;
  28 import org.springframework.core.io.Resource;
  29
  30 public class DependencyFileLoader implements FactoryBean{
  31         private final static Log log = LogFactory.getLog(DependencyFileLoader.class);
  32
  33         private Resource dependenciesResource;
  34
  35         @SuppressWarnings("unchecked")
  36         public List<MavenFile> loadMavenFiles() {
  37                 try {
  38                         List<MavenFile> mavenFiles = new ArrayList<MavenFile>();
  39
  40                         List<String> lines = IOUtils.readLines(dependenciesResource
  41                                         .getInputStream());
  42                         for (String line : lines) {
  43                                 try {
  44                                         line = line.trim();
  45                                         if (line.equals("")
  46                                                         || line
  47                                                                         .startsWith("The following files have been resolved:"))
  48                                                 continue;// skip
  49
  50                                         mavenFiles.add(convert(line));
  51                                 } catch (Exception e) {
  52                                         log.warn("Could not load line " + line);
  53                                 }
  54                         }
  55
  56                         return mavenFiles;
  57                 } catch (IOException e) {
  58                         throw new SlcException("Could not read dependencies resource "
  59                                         + dependenciesResource, e);
  60                 }
  61         }
  62
  63         protected MavenFile convert(String str) {
  64                 StringTokenizer st = new StringTokenizer(str, ":");
  65                 MavenFile component = new MavenFile();
  66                 component.setGroupId(st.nextToken());
  67                 component.setArtifactId(st.nextToken());
  68                 component.setType(st.nextToken());
  69                 component.setVersion(st.nextToken());
  70                 component.setScope(st.nextToken());
  71                 return component;
  72         }
  73
  74         public void setDependenciesResource(Resource dependenciesResource) {
  75                 this.dependenciesResource = dependenciesResource;
  76         }
  77
  78         public Object getObject() throws Exception {
  79                 return loadMavenFiles();
  80         }
  81
  82         @SuppressWarnings("unchecked")
  83         public Class<List> getObjectType() {
  84                 return List.class;
  85         }
  86
  87         public boolean isSingleton() {
  88                 return false;
  89         }
  90
  91
  92 }