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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package com.sun.xml.internal.ws.policy.sourcemodel;

import com.sun.xml.internal.ws.policy.privateutil.LocalizationMessages;

import com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;

import com.sun.xml.internal.ws.policy.privateutil.PolicyUtils;

import java.net.URI;

import java.net.URISyntaxException;

/**

 *

 * @author Marek Potociar

 */

final class PolicyReferenceData {

    private static final PolicyLogger LOGGER = PolicyLogger.getLogger(PolicyReferenceData.class);

    private static final URI DEFAULT_DIGEST_ALGORITHM_URI;

    private static final URISyntaxException CLASS_INITIALIZATION_EXCEPTION;

    static {

        URISyntaxException tempEx = null;

        URI tempUri = null;

        try {

            tempUri = new URI("http://schemas.xmlsoap.org/ws/2004/09/policy/Sha1Exc");

        } catch (URISyntaxException e) {

            tempEx = e;

        } finally {

            DEFAULT_DIGEST_ALGORITHM_URI = tempUri;

            CLASS_INITIALIZATION_EXCEPTION = tempEx;

        }

    }

    private final URI referencedModelUri;

    private final String digest;

    private final URI digestAlgorithmUri;

    /** Creates a new instance of PolicyReferenceData */

    public PolicyReferenceData(URI referencedModelUri) {

        this.referencedModelUri = referencedModelUri;

        this.digest = null;

        this.digestAlgorithmUri = null;

    }

    public PolicyReferenceData(URI referencedModelUri, String expectedDigest, URI usedDigestAlgorithm) {

        if (CLASS_INITIALIZATION_EXCEPTION != null) {

            throw LOGGER.logSevereException(new IllegalStateException(LocalizationMessages.WSP_0015_UNABLE_TO_INSTANTIATE_DIGEST_ALG_URI_FIELD(), CLASS_INITIALIZATION_EXCEPTION));

        }

        if (usedDigestAlgorithm != null && expectedDigest == null) {

            throw LOGGER.logSevereException(new IllegalArgumentException(LocalizationMessages.WSP_0072_DIGEST_MUST_NOT_BE_NULL_WHEN_ALG_DEFINED()));

        }

        this.referencedModelUri = referencedModelUri;

        if (expectedDigest == null) {

            this.digest = null;

            this.digestAlgorithmUri = null;

        } else {

            this.digest = expectedDigest;

            if (usedDigestAlgorithm == null) {

                this.digestAlgorithmUri = DEFAULT_DIGEST_ALGORITHM_URI;

            } else {

                this.digestAlgorithmUri = usedDigestAlgorithm;

            }

        }

    }

    public URI getReferencedModelUri() {

        return referencedModelUri;

    }

    public String getDigest() {

        return digest;

    }

    public URI getDigestAlgorithmUri() {

        return digestAlgorithmUri;

    }

    /**

     * An {@code Object.toString()} method override.

     */

    @Override

    public String toString() {

        return toString(0, new StringBuffer()).toString();

    }

    /**

     * A helper method that appends indented string representation of this instance to the input string buffer.

     *

     * @param indentLevel indentation level to be used.

     * @param buffer buffer to be used for appending string representation of this instance

     * @return modified buffer containing new string representation of the instance

     */

    public StringBuffer toString(final int indentLevel, final StringBuffer buffer) {

        final String indent = PolicyUtils.Text.createIndent(indentLevel);

        final String innerIndent = PolicyUtils.Text.createIndent(indentLevel + 1);

        buffer.append(indent).append("reference data {").append(PolicyUtils.Text.NEW_LINE);

        buffer.append(innerIndent).append("referenced policy model URI = '").append(referencedModelUri).append('\'').append(PolicyUtils.Text.NEW_LINE);

        if (digest == null) {

            buffer.append(innerIndent).append("no digest specified").append(PolicyUtils.Text.NEW_LINE);

        } else {

            buffer.append(innerIndent).append("digest algorith URI = '").append(digestAlgorithmUri).append('\'').append(PolicyUtils.Text.NEW_LINE);

            buffer.append(innerIndent).append("digest = '").append(digest).append('\'').append(PolicyUtils.Text.NEW_LINE);

        }

        buffer.append(indent).append('}');

        return buffer;

    }

}