org.twinkql.context.Qname.java Source code

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Here is the source code for org.twinkql.context.Qname.java

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/*
 * Copyright: (c) 2004-2011 Mayo Foundation for Medical Education and 
 * Research (MFMER). All rights reserved. MAYO, MAYO CLINIC, and the
 * triple-shield Mayo logo are trademarks and service marks of MFMER.
 *
 * Except as contained in the copyright notice above, or as used to identify 
 * MFMER as the author of this software, the trade names, trademarks, service
 * marks, or product names of the copyright holder shall not be used in
 * advertising, promotion or otherwise in connection with this software without
 * prior written authorization of the copyright holder.
 *
 * 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.twinkql.context;

import org.apache.commons.lang.StringUtils;
import org.springframework.util.Assert;

/**
 * A Namespace : Name par.
 *
 * @author <a href="mailto:kevin.peterson@mayo.edu">Kevin Peterson</a>
 */
public class Qname {
    private String namespace;
    private String localName;

    /**
     * To qname.
     *
     * @param qualifiedName the qualified name
     * @param defaultNamespace the default namespace
     * @return the qname
     */
    public static Qname toQname(String qualifiedName, String defaultNamespace) {
        String[] names = StringUtils.split(qualifiedName, ":");

        if (names.length == 1) {
            return new Qname(defaultNamespace, names[0]);
        } else {
            return new Qname(names[0], names[1]);
        }
    }

    /**
     * To qname.
     *
     * @param qualifiedName the qualified name
     * @return the qname
     */
    public static Qname toQname(String qualifiedName) {
        String[] names = StringUtils.split(qualifiedName, ":");

        Assert.isTrue(names.length == 2, "Error parsing Qualified Name: " + qualifiedName + ". A QualifiedName"
                + " must be in the format '[namespace]:[localname].");

        return new Qname(names[0], names[1]);
    }

    /**
     * Instantiates a new qname.
     *
     * @param namespace the namespace
     * @param localName the local name
     */
    public Qname(String namespace, String localName) {
        super();
        this.namespace = namespace;
        this.localName = localName;
    }

    /**
     * Gets the namespace.
     *
     * @return the namespace
     */
    public String getNamespace() {
        return namespace;
    }

    /**
     * Gets the local name.
     *
     * @return the local name
     */
    public String getLocalName() {
        return localName;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((localName == null) ? 0 : localName.hashCode());
        result = prime * result + ((namespace == null) ? 0 : namespace.hashCode());
        return result;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Qname other = (Qname) obj;
        if (localName == null) {
            if (other.localName != null)
                return false;
        } else if (!localName.equals(other.localName))
            return false;
        if (namespace == null) {
            if (other.namespace != null)
                return false;
        } else if (!namespace.equals(other.namespace))
            return false;
        return true;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    public String toString() {
        return "Namespace: " + this.namespace + ", LocalName: " + this.localName;
    }
}