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The PDS3 Product Tools Library project supports design/generation, validation and submission of archival products to the PDS. This project consists of a library of software classes to support the development of tools to perform these functions and is designed to be utilized by developers from the Engineering Node, Discipline Nodes and the PDS community.

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// Copyright 2019, California Institute of Technology ("Caltech").
// U.S. Government sponsorship acknowledged.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// • Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// • Redistributions must reproduce the above copyright notice, this list of
// conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
// • Neither the name of Caltech nor its operating division, the Jet Propulsion
// Laboratory, nor the names of its contributors may be used to endorse or
// promote products derived from this software without specific prior written
// permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

package gov.nasa.pds.tools.label;

import java.io.Serializable;

/**
 * @author pramirez
 * @author jagander
 * @version $Revision$
 * 
 */
public class Identifier implements Serializable {

    private static final long serialVersionUID = 1L;

    private String namespace;

    private String localName;

    public Identifier(String namespace, String localName) {
        this.namespace = namespace;
        this.localName = localName;
    }

    public Identifier(String identifier) {
        this.namespace = ""; //$NON-NLS-1$
        if (identifier.indexOf(":") != -1) { //$NON-NLS-1$
            this.namespace = identifier.substring(0, identifier.indexOf(":")); //$NON-NLS-1$
        }

        if (identifier.indexOf(":") == -1) { //$NON-NLS-1$
            this.localName = identifier;
        } else {
            this.localName = identifier.substring(identifier.indexOf(":") + 1); //$NON-NLS-1$
        }
    }

    @Override
    public String toString() {
        if ("".equals(this.namespace)) { //$NON-NLS-1$
            return this.localName;
        }
        return this.namespace + ":" + this.localName; //$NON-NLS-1$
    }

    public String getLocalName() {
        return this.localName;
    }

    public String getNamespace() {
        return this.namespace;
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof Identifier)) {
            return false;
        }
        Identifier oId = (Identifier) o;
        if (!this.namespace.equals(oId.getNamespace())) {
            return false;
        } else if (!this.localName.equals(oId.getLocalName())) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        String name = this.toString();
        return name.hashCode();
    }
}