net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/core/JavaProjectElementInfo.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.core;
  12
  13 import net.sourceforge.phpdt.core.IClasspathEntry;
  14 import net.sourceforge.phpdt.core.IJavaProject;
  15 import net.sourceforge.phpdt.core.JavaModelException;
  16 import net.sourceforge.phpdt.internal.core.util.Util;
  17
  18 import org.eclipse.core.resources.IContainer;
  19 import org.eclipse.core.resources.IResource;
  20 import org.eclipse.core.runtime.CoreException;
  21 import org.eclipse.core.runtime.IPath;
  22
  23 /**
  24  * Info for IJavaProject.
  25  * <p>
  26  * Note: <code>getChildren()</code> returns all of the
  27  * <code>IPackageFragmentRoots</code> specified on the classpath for the
  28  * project. This can include roots external to the project. See
  29  * <code>JavaProject#getAllPackageFragmentRoots()</code> and
  30  * <code>JavaProject#getPackageFragmentRoots()</code>. To get only the
  31  * <code>IPackageFragmentRoots</code> that are internal to the project, use
  32  * <code>JavaProject#getChildren()</code>.
  33  */
  34
  35 /* package */
  36 class JavaProjectElementInfo extends OpenableElementInfo {
  37
  38         /**
  39          * The name lookup facility to use with this project.
  40          */
  41         protected NameLookup fNameLookup = null;
  42
  43         /**
  44          * The searchable builder environment facility used with this project
  45          * (doubles as the builder environment).
  46          */
  47         // protected SearchableEnvironment fSearchableEnvironment = null;
  48         /**
  49          * A array with all the non-java resources contained by this PackageFragment
  50          */
  51         private Object[] fNonJavaResources;
  52
  53         /**
  54          * Create and initialize a new instance of the receiver
  55          */
  56         public JavaProjectElementInfo() {
  57                 fNonJavaResources = null;
  58         }
  59
  60         /**
  61          * Compute the non-java resources contained in this java project.
  62          */
  63         private Object[] computeNonJavaResources(JavaProject project) {
  64
  65                 // determine if src == project and/or if bin == project
  66                 IPath projectPath = project.getProject().getFullPath();
  67                 boolean srcIsProject = false;
  68                 boolean binIsProject = false;
  69                 char[][] exclusionPatterns = null;
  70                 IClasspathEntry[] classpath = null;
  71                 IPath projectOutput = null;
  72                 try {
  73                         classpath = project
  74                                         .getResolvedClasspath(true/* ignore unresolved variable */);
  75                         for (int i = 0; i < classpath.length; i++) {
  76                                 IClasspathEntry entry = classpath[i];
  77                                 if (projectPath.equals(entry.getPath())) {
  78                                         srcIsProject = true;
  79                                         exclusionPatterns = ((ClasspathEntry) entry)
  80                                                         .fullExclusionPatternChars();
  81                                         break;
  82                                 }
  83                         }
  84                         projectOutput = project.getOutputLocation();
  85                         binIsProject = projectPath.equals(projectOutput);
  86                 } catch (JavaModelException e) {
  87                         // ignore
  88                 }
  89
  90                 Object[] nonJavaResources = new IResource[5];
  91                 int nonJavaResourcesCounter = 0;
  92                 try {
  93                         IResource[] members = ((IContainer) project.getResource())
  94                                         .members();
  95                         for (int i = 0, max = members.length; i < max; i++) {
  96                                 IResource res = members[i];
  97                                 switch (res.getType()) {
  98                                 case IResource.FILE:
  99                                         IPath resFullPath = res.getFullPath();
 100                                         String resName = res.getName();
 101
 102                                         // ignore a jar file on the classpath
 103                                         // if (ProjectPrefUtil.isArchiveFileName(resName) &&
 104                                         // this.isClasspathEntryOrOutputLocation(resFullPath,
 105                                         // classpath, projectOutput)) {
 106                                         // break;
 107                                         // }
 108                                         // ignore .java file if src == project
 109                                         if (srcIsProject
 110                                         // && ProjectPrefUtil.isValidCompilationUnitName(resName)
 111                                                         && !Util.isExcluded(res, exclusionPatterns)) {
 112                                                 break;
 113                                         }
 114                                         // ignore .class file if bin == project
 115                                         // if (binIsProject &&
 116                                         // ProjectPrefUtil.isValidClassFileName(resName)) {
 117                                         // break;
 118                                         // }
 119                                         // else add non java resource
 120                                         if (nonJavaResources.length == nonJavaResourcesCounter) {
 121                                                 // resize
 122                                                 System
 123                                                                 .arraycopy(
 124                                                                                 nonJavaResources,
 125                                                                                 0,
 126                                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 127                                                                                 0, nonJavaResourcesCounter);
 128                                         }
 129                                         nonJavaResources[nonJavaResourcesCounter++] = res;
 130                                         break;
 131                                 case IResource.FOLDER:
 132                                         resFullPath = res.getFullPath();
 133
 134                                         // ignore non-excluded folders on the classpath or that
 135                                         // correspond to an output location
 136                                         if ((srcIsProject
 137                                                         && !Util.isExcluded(res, exclusionPatterns) && Util
 138                                                         .isValidFolderNameForPackage(res.getName()))
 139                                                         || this.isClasspathEntryOrOutputLocation(
 140                                                                         resFullPath, classpath, projectOutput)) {
 141                                                 break;
 142                                         }
 143                                         // else add non java resource
 144                                         if (nonJavaResources.length == nonJavaResourcesCounter) {
 145                                                 // resize
 146                                                 System
 147                                                                 .arraycopy(
 148                                                                                 nonJavaResources,
 149                                                                                 0,
 150                                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 151                                                                                 0, nonJavaResourcesCounter);
 152                                         }
 153                                         nonJavaResources[nonJavaResourcesCounter++] = res;
 154                                 }
 155                         }
 156                         if (nonJavaResources.length != nonJavaResourcesCounter) {
 157                                 System
 158                                                 .arraycopy(
 159                                                                 nonJavaResources,
 160                                                                 0,
 161                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter]),
 162                                                                 0, nonJavaResourcesCounter);
 163                         }
 164                 } catch (CoreException e) {
 165                         nonJavaResources = NO_NON_JAVA_RESOURCES;
 166                         nonJavaResourcesCounter = 0;
 167                 }
 168                 return nonJavaResources;
 169         }
 170
 171         /**
 172          * @see IJavaProject
 173          */
 174         protected NameLookup getNameLookup() {
 175
 176                 return fNameLookup;
 177         }
 178
 179         /**
 180          * Returns an array of non-java resources contained in the receiver.
 181          */
 182         Object[] getNonJavaResources(JavaProject project) {
 183
 184                 Object[] nonJavaResources = fNonJavaResources;
 185                 if (nonJavaResources == null) {
 186                         nonJavaResources = computeNonJavaResources(project);
 187                         fNonJavaResources = nonJavaResources;
 188                 }
 189                 return nonJavaResources;
 190         }
 191
 192         /**
 193          * @see IJavaProject
 194          */
 195         // protected SearchableEnvironment getSearchableEnvironment() {
 196         //
 197         // return fSearchableEnvironment;
 198         // }
 199         /*
 200          * Returns whether the given path is a classpath entry or an output
 201          * location.
 202          */
 203         private boolean isClasspathEntryOrOutputLocation(IPath path,
 204                         IClasspathEntry[] resolvedClasspath, IPath projectOutput) {
 205                 if (projectOutput.equals(path))
 206                         return true;
 207                 for (int i = 0, length = resolvedClasspath.length; i < length; i++) {
 208                         IClasspathEntry entry = resolvedClasspath[i];
 209                         if (entry.getPath().equals(path)) {
 210                                 return true;
 211                         }
 212                         IPath output;
 213                         if ((output = entry.getOutputLocation()) != null
 214                                         && output.equals(path)) {
 215                                 return true;
 216                         }
 217                 }
 218                 return false;
 219         }
 220
 221         protected void setNameLookup(NameLookup newNameLookup) {
 222
 223                 fNameLookup = newNameLookup;
 224
 225                 // Reinitialize the searchable name environment since it caches
 226                 // the name lookup.
 227                 // fSearchableEnvironment = null;
 228         }
 229
 230         /**
 231          * Set the fNonJavaResources to res value
 232          */
 233         synchronized void setNonJavaResources(Object[] resources) {
 234
 235                 fNonJavaResources = resources;
 236         }
 237
 238         // protected void setSearchableEnvironment(SearchableEnvironment
 239         // newSearchableEnvironment) {
 240         //
 241         // fSearchableEnvironment = newSearchableEnvironment;
 242         // }
 243 }