SnapshotIndexCommitExistsMatcher.java

/*
 * Licensed to ElasticSearch and Shay Banon under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. ElasticSearch licenses this
 * file to you 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.elasticsearch.test.unit.index.deletionpolicy;

import org.elasticsearch.index.deletionpolicy.SnapshotIndexCommit;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;

import java.io.IOException;

/**
 *
 */
public class SnapshotIndexCommitExistsMatcher extends TypeSafeMatcher<SnapshotIndexCommit> {

    @Override
    public boolean matchesSafely(SnapshotIndexCommit snapshotIndexCommit) {
        for (String fileName : snapshotIndexCommit.getFiles()) {
            try {
                if (!snapshotIndexCommit.getDirectory().fileExists(fileName)) {
                    return false;
                }
            } catch (IOException e) {
                return false;
            }
        }
        return true;
    }

    @Override
    public void describeTo(Description description) {
        description.appendText("an index commit existence");
    }

    public static Matcher<SnapshotIndexCommit> snapshotIndexCommitExists() {
        return new SnapshotIndexCommitExistsMatcher();
    }
}