org.bgp4j.config.nodes.CapabilitiesDecorator.java Source code

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Here is the source code for org.bgp4j.config.nodes.CapabilitiesDecorator.java

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/**
 *  Copyright 2012 Rainer Bieniek (Rainer.Bieniek@web.de)
 *
 *  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.
 * 
 * File: org.bgp4.config.nodes.CapabilitiesDecorator.java 
 */
package org.bgp4j.config.nodes;

import java.util.Set;

import org.apache.commons.lang.builder.HashCodeBuilder;
import org.bgp4j.net.capabilities.Capability;

/**
 * @author Rainer Bieniek (Rainer.Bieniek@web.de)
 *
 */
public class CapabilitiesDecorator implements Capabilities {

    private Capabilities decorated;

    public CapabilitiesDecorator(Capabilities decorated) {
        this.decorated = decorated;
    }

    @Override
    public Set<Capability> getRequiredCapabilities() {
        return this.decorated.getRequiredCapabilities();
    }

    @Override
    public Set<Capability> getOptionalCapabilities() {
        return this.decorated.getOptionalCapabilities();
    }

    /* (non-Javadoc)
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof Capabilities))
            return false;

        Set<Capability> otherCaps = ((Capabilities) obj).getRequiredCapabilities();
        Set<Capability> thisCaps = getRequiredCapabilities();

        if (otherCaps.size() != thisCaps.size())
            return false;

        for (Capability cap : thisCaps)
            if (!otherCaps.contains(cap))
                return false;

        otherCaps = ((Capabilities) obj).getOptionalCapabilities();
        thisCaps = getOptionalCapabilities();

        if (otherCaps.size() != thisCaps.size())
            return false;

        for (Capability cap : thisCaps)
            if (!otherCaps.contains(cap))
                return false;
        return true;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        HashCodeBuilder hcb = new HashCodeBuilder();

        for (Capability cap : getRequiredCapabilities())
            hcb.append(cap).append(false);

        for (Capability cap : getOptionalCapabilities())
            hcb.append(cap).append(true);

        return hcb.toHashCode();
    }

}