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  | 17 |  |  package org.kuali.rice.core.api.resourceloader; | 
  | 18 |  |   | 
  | 19 |  |  import java.util.ArrayList; | 
  | 20 |  |  import java.util.Iterator; | 
  | 21 |  |  import java.util.List; | 
  | 22 |  |   | 
  | 23 |  |  import javax.xml.namespace.QName; | 
  | 24 |  |   | 
  | 25 |  |  import org.apache.commons.lang.ObjectUtils; | 
  | 26 |  |  import org.apache.log4j.Logger; | 
  | 27 |  |  import org.kuali.rice.core.api.lifecycle.BaseLifecycle; | 
  | 28 |  |  import org.kuali.rice.core.api.reflect.ObjectDefinition; | 
  | 29 |  |  import org.kuali.rice.core.api.resourceloader.ResourceLoader; | 
  | 30 |  |   | 
  | 31 |  |   | 
  | 32 |  |   | 
  | 33 |  |   | 
  | 34 |  |   | 
  | 35 |  |   | 
  | 36 |  |   | 
  | 37 |  |   | 
  | 38 |  |   | 
  | 39 |  |  public class ResourceLoaderContainer extends BaseLifecycle implements ResourceLoader { | 
  | 40 |  |   | 
  | 41 | 0 |          private static final Logger LOG = Logger.getLogger(ResourceLoaderContainer.class); | 
  | 42 |  |   | 
  | 43 |  |          private QName name; | 
  | 44 |  |   | 
  | 45 | 0 |          private List<ResourceLoader> resourceLoaders = new ArrayList<ResourceLoader>(); | 
  | 46 |  |   | 
  | 47 | 0 |          public ResourceLoaderContainer(QName name) { | 
  | 48 | 0 |                  this.name = name; | 
  | 49 | 0 |          } | 
  | 50 |  |   | 
  | 51 |  |          public void start() throws Exception { | 
  | 52 | 0 |                  for (ResourceLoader resourceLoader : this.resourceLoaders) { | 
  | 53 | 0 |                          LOG.info("Starting ResourceLoader " + resourceLoader.getName()); | 
  | 54 | 0 |                          resourceLoader.start(); | 
  | 55 |  |                  } | 
  | 56 | 0 |                  super.start(); | 
  | 57 | 0 |          } | 
  | 58 |  |   | 
  | 59 |  |          public void stop() throws Exception { | 
  | 60 | 0 |                  while (!this.resourceLoaders.isEmpty()) { | 
  | 61 | 0 |                          ResourceLoader rl = this.resourceLoaders.get(this.resourceLoaders.size() - 1); | 
  | 62 | 0 |                          rl.stop(); | 
  | 63 | 0 |                          this.resourceLoaders.remove(rl); | 
  | 64 | 0 |                  } | 
  | 65 |  |   | 
  | 66 | 0 |                  super.stop(); | 
  | 67 | 0 |                  this.resourceLoaders.clear(); | 
  | 68 | 0 |          } | 
  | 69 |  |   | 
  | 70 |  |          public void addResourceLoader(ResourceLoader resourceLoader) { | 
  | 71 | 0 |                  this.resourceLoaders.add(resourceLoader); | 
  | 72 |  |                   | 
  | 73 |  |                   | 
  | 74 | 0 |                  moveKSBLoadersDownHack();                 | 
  | 75 | 0 |          } | 
  | 76 |  |           | 
  | 77 |  |           | 
  | 78 |  |          private void moveKSBLoadersDownHack() { | 
  | 79 |  |                   | 
  | 80 | 0 |                  for (int i = 0; i < resourceLoaders.size(); i++) { | 
  | 81 | 0 |                          final boolean remote = resourceLoaders.get(i).getName().toString().toUpperCase().contains("KSB"); | 
  | 82 | 0 |                          if (remote) { | 
  | 83 | 0 |                                  final ResourceLoader removed = this.resourceLoaders.remove(i); | 
  | 84 | 0 |                                  this.resourceLoaders.add(this.resourceLoaders.size(), removed); | 
  | 85 |  |                          } | 
  | 86 |  |                  } | 
  | 87 | 0 |          } | 
  | 88 |  |   | 
  | 89 |  |          public void addResourceLoaderFirst(ResourceLoader resourceLoader) { | 
  | 90 | 0 |                  this.resourceLoaders.add(0, resourceLoader); | 
  | 91 |  |   | 
  | 92 |  |                   | 
  | 93 | 0 |                  moveKSBLoadersDownHack(); | 
  | 94 | 0 |          } | 
  | 95 |  |   | 
  | 96 |  |          public boolean containsResourceLoader(ResourceLoader resourceLoader) { | 
  | 97 | 0 |                  return this.resourceLoaders.contains(resourceLoader); | 
  | 98 |  |          } | 
  | 99 |  |   | 
  | 100 |  |          public ResourceLoader getResourceLoader(QName name) { | 
  | 101 |  |   | 
  | 102 | 0 |                  if (this.getName().equals(name)) { | 
  | 103 | 0 |                          return this; | 
  | 104 |  |                  } | 
  | 105 |  |   | 
  | 106 | 0 |                  for (Iterator<ResourceLoader> iter = this.resourceLoaders.iterator(); iter.hasNext();) { | 
  | 107 | 0 |                          ResourceLoader loader = iter.next(); | 
  | 108 | 0 |                          if (loader.getName().equals(name)) { | 
  | 109 | 0 |                                  return loader; | 
  | 110 |  |                          } | 
  | 111 | 0 |                          ResourceLoader loader2 = loader.getResourceLoader(name); | 
  | 112 | 0 |                          if (loader2 != null) { | 
  | 113 | 0 |                                  return loader2; | 
  | 114 |  |                          } | 
  | 115 | 0 |                  } | 
  | 116 | 0 |                  return null; | 
  | 117 |  |          } | 
  | 118 |  |   | 
  | 119 |  |          public List<QName> getResourceLoaderNames() { | 
  | 120 | 0 |                  List<QName> names = new ArrayList<QName>(); | 
  | 121 | 0 |                  for (Iterator<ResourceLoader> iter = this.resourceLoaders.iterator(); iter.hasNext();) { | 
  | 122 | 0 |                          names.add(iter.next().getName()); | 
  | 123 |  |                  } | 
  | 124 | 0 |                  return names; | 
  | 125 |  |          } | 
  | 126 |  |   | 
  | 127 |  |          public void removeAllResourceLoaders() { | 
  | 128 | 0 |              this.resourceLoaders.clear(); | 
  | 129 | 0 |          } | 
  | 130 |  |   | 
  | 131 |  |          public void removeResourceLoader(QName name) { | 
  | 132 | 0 |                  ResourceLoader loaderToRemove = null; | 
  | 133 | 0 |                  for (Iterator<ResourceLoader> iter = this.resourceLoaders.iterator(); iter.hasNext();) { | 
  | 134 | 0 |                          ResourceLoader loader = iter.next(); | 
  | 135 | 0 |                          if (loader.getName().equals(name)) { | 
  | 136 | 0 |                                  loaderToRemove = loader; | 
  | 137 |  |                          } | 
  | 138 | 0 |                  } | 
  | 139 | 0 |                  if (loaderToRemove != null) { | 
  | 140 |  |                          try { | 
  | 141 | 0 |                                  loaderToRemove.stop(); | 
  | 142 | 0 |                          } catch (Exception e) { | 
  | 143 | 0 |                                  LOG.error("Failed to stop plugin " + loaderToRemove.getName() + " on removal", e); | 
  | 144 | 0 |                          } | 
  | 145 | 0 |                          this.resourceLoaders.remove(loaderToRemove); | 
  | 146 |  |                  } | 
  | 147 | 0 |          } | 
  | 148 |  |   | 
  | 149 |  |          public List<ResourceLoader> getResourceLoaders() { | 
  | 150 | 0 |                  return this.resourceLoaders; | 
  | 151 |  |          } | 
  | 152 |  |   | 
  | 153 |  |   | 
  | 154 |  |   | 
  | 155 |  |          public Object getObject(ObjectDefinition definition) { | 
  | 156 | 0 |                  for (ResourceLoader resourceLoader : this.resourceLoaders) { | 
  | 157 | 0 |                          Object object = resourceLoader.getObject(definition); | 
  | 158 | 0 |                          if (object != null) { | 
  | 159 | 0 |                                  return object; | 
  | 160 |  |                          } | 
  | 161 | 0 |                  } | 
  | 162 | 0 |                  return null; | 
  | 163 |  |          } | 
  | 164 |  |   | 
  | 165 |  |          public Object getService(QName qname) { | 
  | 166 | 0 |                  if (LOG.isDebugEnabled()) { | 
  | 167 | 0 |                          LOG.debug("ResourceLoader " + getName() + " fetching service " + qname); | 
  | 168 |  |                  } | 
  | 169 | 0 |                  for (ResourceLoader resourceLoader : this.resourceLoaders) { | 
  | 170 | 0 |                          if (LOG.isDebugEnabled()) { | 
  | 171 | 0 |                                  LOG.debug("Delegating fetch to " + this); | 
  | 172 |  |                          } | 
  | 173 | 0 |                          Object service = resourceLoader.getService(qname); | 
  | 174 | 0 |                          if (service != null) { | 
  | 175 | 0 |                                  if (LOG.isDebugEnabled()) { | 
  | 176 | 0 |                                          LOG.debug("Found service from " + this); | 
  | 177 |  |                                  } | 
  | 178 | 0 |                                  return service; | 
  | 179 |  |                          } | 
  | 180 | 0 |                  } | 
  | 181 | 0 |                  return null; | 
  | 182 |  |          } | 
  | 183 |  |   | 
  | 184 |  |          public String getContents(String indent, boolean servicePerLine) { | 
  | 185 | 0 |                  String contents = indent + this + "\n"; | 
  | 186 |  |   | 
  | 187 | 0 |                  for (ResourceLoader resourceLoader : this.resourceLoaders) { | 
  | 188 | 0 |                          contents += resourceLoader.getContents(indent + "+++", servicePerLine); | 
  | 189 |  |                  } | 
  | 190 |  |   | 
  | 191 | 0 |                  return contents; | 
  | 192 |  |          } | 
  | 193 |  |   | 
  | 194 |  |          @Override | 
  | 195 |  |          public String toString() { | 
  | 196 | 0 |                  return "Resource Loader: " + this.name + " (" + ObjectUtils.identityToString(this) + ") direct children resource loaders size: " + this.resourceLoaders.size(); | 
  | 197 |  |          } | 
  | 198 |  |   | 
  | 199 |  |          public QName getName() { | 
  | 200 | 0 |                  return this.name; | 
  | 201 |  |          } | 
  | 202 |  |   | 
  | 203 |  |          public void setName(QName name) { | 
  | 204 | 0 |                  this.name = name; | 
  | 205 | 0 |          } | 
  | 206 |  |   | 
  | 207 |  |   | 
  | 208 |  |   | 
  | 209 |  |   | 
  | 210 |  |   | 
  | 211 |  |  } |