com.b2international.snowowl.datastore.cdo.CDOCommitInfoWithUuid.java Source code

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Here is the source code for com.b2international.snowowl.datastore.cdo.CDOCommitInfoWithUuid.java

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/*
 * Copyright 2011-2015 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * 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 com.b2international.snowowl.datastore.cdo;

import org.eclipse.emf.cdo.common.commit.CDOCommitInfo;

import com.google.common.base.Preconditions;
import com.google.common.base.Strings;

/**
 * {@link ICDOCommitInfoWithUuid} implementation.
 *
 */
@SuppressWarnings("restriction")
public class CDOCommitInfoWithUuid extends org.eclipse.emf.cdo.internal.common.commit.DelegatingCommitInfo
        implements ICDOCommitInfoWithUuid {

    private final CDOCommitInfo delegate;
    private final String uuid;
    private final String modifiedComment;

    public CDOCommitInfoWithUuid(final CDOCommitInfo commitInfo) {
        this.delegate = Preconditions.checkNotNull(commitInfo, "Commit info argument cannot be null.");

        if (commitInfo instanceof ICDOCommitInfoWithUuid) {
            uuid = ((ICDOCommitInfoWithUuid) commitInfo).getUuid();
            modifiedComment = commitInfo.getComment(); // already modified
        } else {
            uuid = CDOCommitInfoUtils.getUuid(commitInfo);
            modifiedComment = CDOCommitInfoUtils.removeUuidPrefix(Strings.nullToEmpty(commitInfo.getComment()));
        }

    }

    /* (non-Javadoc)
     * @see com.b2international.snowowl.datastore.cdo.ICDOCommitInfoWithUuid#getUuid()
     */
    @Override
    public String getUuid() {
        return uuid;
    }

    /* (non-Javadoc)
     * @see org.eclipse.emf.cdo.internal.common.commit.DelegatingCommitInfo#getComment()
     */
    @Override
    public String getComment() {
        return modifiedComment;
    }

    /* (non-Javadoc)
     * @see org.eclipse.emf.cdo.internal.common.commit.DelegatingCommitInfo#getDelegate()
     */
    @Override
    protected CDOCommitInfo getDelegate() {
        return delegate;
    }

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

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

}