JsonStringSetAdapter.java

// Copyright 2012 Google Inc. All Rights Reserved.
//
// 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 org.eclipse.che.ide.collections.java;


import org.eclipse.che.ide.collections.Array;
import org.eclipse.che.ide.collections.StringSet;

import java.util.ArrayList;
import java.util.Set;

/**
 * Server wrapper for a {@link java.util.Set} that implements
 * {@link com.codenvy.ide.collections.StringSet}.
 */
public class JsonStringSetAdapter implements StringSet {
    private final Set<String> delegate;

    public JsonStringSetAdapter(Set<String> delegate) {
        this.delegate = delegate;
    }

    @Override
    public boolean contains(String key) {
        return delegate.contains(key);
    }

    @Override
    public Array<String> getKeys() {
        return new JsonArrayListAdapter<String>(new ArrayList<String>(delegate));
    }

    @Override
    public boolean isEmpty() {
        return delegate.isEmpty();
    }

    @Override
    public void iterate(IterationCallback callback) {
        for (String key : delegate) {
            callback.onIteration(key);
        }
    }

    @Override
    public void add(String key) {
        delegate.add(key);
    }

    @Override
    public void addAll(Array<String> keys) {
        for (int i = 0, n = keys.size(); i < n; i++) {
            add(keys.get(i));
        }
    }

    @Override
    public boolean remove(String key) {
        return delegate.remove(key);
    }

    @Override
    public void clear() {
        delegate.clear();
    }

    @Override
    public int hashCode() {
        return delegate.hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof JsonStringSetAdapter) {
            return delegate.equals(((JsonStringSetAdapter)obj).delegate);
        }
        return false;
    }

    @Override
    public String toString() {
        return delegate.toString();
    }
}