/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.diff.impl;
import com.intellij.openapi.actionSystem.DataKey;
import com.intellij.openapi.actionSystem.DataProvider;
import org.jetbrains.annotations.Nullable;
import java.util.HashMap;
import java.util.Map;
public class GenericDataProvider implements DataProvider {
private final Map<String, Object> myGenericData;
private final DataProvider myParentProvider;
public GenericDataProvider() {
this(null);
}
public GenericDataProvider(@Nullable DataProvider provider) {
myParentProvider = provider;
myGenericData = new HashMap<String, Object>();
}
public void putData(DataKey key, Object value) {
myGenericData.put(key.getName(), value);
}
public void putData(String key, Object value) {
myGenericData.put(key, value);
}
public void putData(final Map<String, Object> map) {
myGenericData.putAll(map);
}
@Override
public Object getData(String dataId) {
Object data = myGenericData.get(dataId);
if (data != null) return data;
return myParentProvider != null ? myParentProvider.getData(dataId) : null;
}
}