xml/dom-impl/src/com/intellij/util/xml/reflect/DomExtensionsRegistrarImpl.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   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 com.intellij.util.xml.reflect;
  17
  18 import com.intellij.util.SmartList;
  19 import com.intellij.util.ReflectionUtil;
  20 import com.intellij.util.xml.GenericAttributeValue;
  21 import com.intellij.util.xml.XmlName;
  22 import gnu.trove.THashSet;
  23 import org.jetbrains.annotations.NotNull;
  24 import sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl;
  25
  26 import java.lang.reflect.Type;
  27 import java.util.Arrays;
  28 import java.util.List;
  29 import java.util.Set;
  30
  31 /**
  32  * @author peter
  33  */
  34 public class DomExtensionsRegistrarImpl implements DomExtensionsRegistrar {
  35   private final List<DomExtensionImpl> myAttributes = new SmartList<DomExtensionImpl>();
  36   private final List<DomExtensionImpl> myFixeds = new SmartList<DomExtensionImpl>();
  37   private final List<DomExtensionImpl> myCollections = new SmartList<DomExtensionImpl>();
  38   private final Set<Object> myDependencies = new THashSet<Object>();
  39   private DomExtensionImpl myCustomChildrenType;
  40
  41   public List<DomExtensionImpl> getAttributes() {
  42     return myAttributes;
  43   }
  44   public List<DomExtensionImpl> getFixeds() {
  45     return myFixeds;
  46   }
  47
  48   public List<DomExtensionImpl> getCollections() {
  49     return myCollections;
  50   }
  51
  52   public DomExtensionImpl getCustomChildrenType() {
  53     return myCustomChildrenType;
  54   }
  55
  56   @NotNull
  57   public final DomExtension registerFixedNumberChildrenExtension(@NotNull final XmlName name, @NotNull final Type type, final int count) {
  58     assert count > 0;
  59     return addExtension(myFixeds, name, type).setCount(count);
  60   }
  61
  62   @NotNull
  63   public DomExtension registerFixedNumberChildExtension(@NotNull final XmlName name, @NotNull final Type type) {
  64     return registerFixedNumberChildrenExtension(name, type, 1);
  65   }
  66
  67   @NotNull
  68   public DomExtension registerCollectionChildrenExtension(@NotNull final XmlName name, @NotNull final Type type) {
  69     return addExtension(myCollections, name, type);
  70   }
  71
  72   @NotNull
  73   public DomExtension registerGenericAttributeValueChildExtension(@NotNull final XmlName name, final Type parameterType) {
  74     return addExtension(myAttributes, name, ParameterizedTypeImpl.make(GenericAttributeValue.class, new Type[]{parameterType}, null));
  75   }
  76
  77   @NotNull
  78   public DomExtension registerAttributeChildExtension(@NotNull final XmlName name, @NotNull final Type type) {
  79     assert GenericAttributeValue.class.isAssignableFrom(ReflectionUtil.getRawType(type));
  80     return addExtension(myAttributes, name, type);
  81   }
  82
  83   @NotNull
  84   public DomExtension registerCustomChildrenExtension(@NotNull final Type type) {
  85     assert myCustomChildrenType == null;
  86     return myCustomChildrenType = new DomExtensionImpl(type, null);
  87   }
  88
  89   private static DomExtensionImpl addExtension(final List<DomExtensionImpl> list, final XmlName name, final Type type) {
  90     final DomExtensionImpl extension = new DomExtensionImpl(type, name);
  91     list.add(extension);
  92     return extension;
  93   }
  94
  95   public final void addDependencies(Object[] deps) {
  96     myDependencies.addAll(Arrays.asList(deps));
  97   }
  98
  99   public Object[] getDependencies() {
 100     return myDependencies.toArray();
 101   }
 102 }