source/com/intellij/pom/java/impl/PomJavaAspectImpl.java

   1 /*
   2  * Copyright (c) 2004 JetBrains s.r.o. All  Rights Reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * -Redistributions of source code must retain the above copyright
   9  *  notice, this list of conditions and the following disclaimer.
  10  *
  11  * -Redistribution in binary form must reproduct the above copyright
  12  *  notice, this list of conditions and the following disclaimer in
  13  *  the documentation and/or other materials provided with the distribution.
  14  *
  15  * Neither the name of JetBrains or IntelliJ IDEA
  16  * may be used to endorse or promote products derived from this software
  17  * without specific prior written permission.
  18  *
  19  * This software is provided "AS IS," without a warranty of any kind. ALL
  20  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
  21  * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
  22  * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. JETBRAINS AND ITS LICENSORS SHALL NOT
  23  * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
  24  * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS
  25  * DERIVATIVES. IN NO EVENT WILL JETBRAINS OR ITS LICENSORS BE LIABLE FOR ANY LOST
  26  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
  27  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
  28  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN
  29  * IF JETBRAINS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  30  *
  31  */
  32 package com.intellij.pom.java.impl;
  33
  34 import com.intellij.lang.java.JavaLanguage;
  35 import com.intellij.openapi.components.ProjectComponent;
  36 import com.intellij.openapi.roots.LanguageLevelProjectExtension;
  37 import com.intellij.pom.PomModel;
  38 import com.intellij.pom.PomModelAspect;
  39 import com.intellij.pom.event.PomModelEvent;
  40 import com.intellij.pom.java.LanguageLevel;
  41 import com.intellij.pom.java.PomJavaAspect;
  42 import com.intellij.pom.java.events.JavaTreeChanged;
  43 import com.intellij.pom.java.events.PomJavaAspectChangeSet;
  44 import com.intellij.pom.tree.TreeAspect;
  45 import com.intellij.pom.tree.events.TreeChangeEvent;
  46 import com.intellij.psi.PsiFile;
  47 import com.intellij.psi.PsiManager;
  48 import org.jetbrains.annotations.NotNull;
  49
  50 import java.util.Collections;
  51
  52 public class PomJavaAspectImpl extends PomJavaAspect implements ProjectComponent {
  53   private final PsiManager myPsiManager;
  54   private final PomModel myPomModel;
  55
  56   public PomJavaAspectImpl(PsiManager psiManager, TreeAspect treeAspect, PomModel pomModel) {
  57     myPsiManager = psiManager;
  58     myPomModel = pomModel;
  59     pomModel.registerAspect(PomJavaAspect.class, this, Collections.singleton((PomModelAspect)treeAspect));
  60   }
  61
  62   public LanguageLevel getLanguageLevel() {
  63     return LanguageLevelProjectExtension.getInstance(myPsiManager.getProject()).getLanguageLevel();
  64   }
  65
  66   public void projectOpened() {
  67   }
  68
  69   public void projectClosed() {
  70   }
  71
  72   @NotNull
  73   public String getComponentName() {
  74     return "PomJavaModel";
  75   }
  76
  77   public void initComponent() { }
  78
  79   public void disposeComponent() {
  80   }
  81
  82   public void update(PomModelEvent event) {
  83     final TreeChangeEvent changeSet = (TreeChangeEvent)event.getChangeSet(myPomModel.getModelAspect(TreeAspect.class));
  84     if(changeSet == null) return;
  85     final PsiFile containingFile = changeSet.getRootElement().getPsi().getContainingFile();
  86     if(!(containingFile.getLanguage() instanceof JavaLanguage)) return;
  87     final PomJavaAspectChangeSet set = new PomJavaAspectChangeSet(myPomModel, containingFile);
  88     set.addChange(new JavaTreeChanged(containingFile));
  89     event.registerChangeSet(this, set);
  90   }
  91 }