WildcardExpressionResolverTests.java example

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package org.elasticsearch.cluster.metadata;

import org.elasticsearch.Version;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.test.ESTestCase;

import java.util.Arrays;

import static org.elasticsearch.common.util.set.Sets.newHashSet;
import static org.hamcrest.Matchers.equalTo;

public class WildcardExpressionResolverTests extends ESTestCase {
    public void testConvertWildcardsJustIndicesTests() {
        MetaData.Builder mdBuilder = MetaData.builder()
                .put(indexBuilder("testXXX"))
                .put(indexBuilder("testXYY"))
                .put(indexBuilder("testYYY"))
                .put(indexBuilder("kuku"));
        ClusterState state = ClusterState.builder(new ClusterName("_name")).metaData(mdBuilder).build();
        IndexNameExpressionResolver.WildcardExpressionResolver resolver = new IndexNameExpressionResolver.WildcardExpressionResolver();

        IndexNameExpressionResolver.Context context = new IndexNameExpressionResolver.Context(state, IndicesOptions.lenientExpandOpen());
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX"))), equalTo(newHashSet("testXXX")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "testYYY"))), equalTo(newHashSet("testXXX", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "ku*"))), equalTo(newHashSet("testXXX", "kuku")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("test*"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testX*"))), equalTo(newHashSet("testXXX", "testXYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testX*", "kuku"))), equalTo(newHashSet("testXXX", "testXYY", "kuku")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("*"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY", "kuku")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("*", "-kuku"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "+testYYY"))), equalTo(newHashSet("testXXX", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "-testXXX"))), equalTo(newHashSet("testXXX", "-testXXX")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "+testY*"))), equalTo(newHashSet("testXXX", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testXXX", "-testX*"))), equalTo(newHashSet("testXXX")));
    }

    public void testConvertWildcardsTests() {
        MetaData.Builder mdBuilder = MetaData.builder()
                .put(indexBuilder("testXXX").putAlias(AliasMetaData.builder("alias1")).putAlias(AliasMetaData.builder("alias2")))
                .put(indexBuilder("testXYY").putAlias(AliasMetaData.builder("alias2")))
                .put(indexBuilder("testYYY").putAlias(AliasMetaData.builder("alias3")))
                .put(indexBuilder("kuku"));
        ClusterState state = ClusterState.builder(new ClusterName("_name")).metaData(mdBuilder).build();
        IndexNameExpressionResolver.WildcardExpressionResolver resolver = new IndexNameExpressionResolver.WildcardExpressionResolver();

        IndexNameExpressionResolver.Context context = new IndexNameExpressionResolver.Context(state, IndicesOptions.lenientExpandOpen());
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testYY*", "alias*"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("-kuku"))), equalTo(newHashSet("-kuku")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("+test*", "-testYYY"))), equalTo(newHashSet("testXXX", "testXYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("+testX*", "+testYYY"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("+testYYY", "+testX*"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
    }

    public void testConvertWildcardsOpenClosedIndicesTests() {
        MetaData.Builder mdBuilder = MetaData.builder()
                .put(indexBuilder("testXXX").state(IndexMetaData.State.OPEN))
                .put(indexBuilder("testXXY").state(IndexMetaData.State.OPEN))
                .put(indexBuilder("testXYY").state(IndexMetaData.State.CLOSE))
                .put(indexBuilder("testYYY").state(IndexMetaData.State.OPEN))
                .put(indexBuilder("testYYX").state(IndexMetaData.State.CLOSE))
                .put(indexBuilder("kuku").state(IndexMetaData.State.OPEN));
        ClusterState state = ClusterState.builder(new ClusterName("_name")).metaData(mdBuilder).build();
        IndexNameExpressionResolver.WildcardExpressionResolver resolver = new IndexNameExpressionResolver.WildcardExpressionResolver();

        IndexNameExpressionResolver.Context context = new IndexNameExpressionResolver.Context(state, IndicesOptions.fromOptions(true, true, true, true));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testX*"))), equalTo(newHashSet("testXXX", "testXXY", "testXYY")));
        context = new IndexNameExpressionResolver.Context(state, IndicesOptions.fromOptions(true, true, false, true));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testX*"))), equalTo(newHashSet("testXYY")));
        context = new IndexNameExpressionResolver.Context(state, IndicesOptions.fromOptions(true, true, true, false));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("testX*"))), equalTo(newHashSet("testXXX", "testXXY")));
    }

    // issue #13334
    public void testMultipleWildcards() {
        MetaData.Builder mdBuilder = MetaData.builder()
                .put(indexBuilder("testXXX"))
                .put(indexBuilder("testXXY"))
                .put(indexBuilder("testXYY"))
                .put(indexBuilder("testYYY"))
                .put(indexBuilder("kuku"))
                .put(indexBuilder("kukuYYY"));

        ClusterState state = ClusterState.builder(new ClusterName("_name")).metaData(mdBuilder).build();
        IndexNameExpressionResolver.WildcardExpressionResolver resolver = new IndexNameExpressionResolver.WildcardExpressionResolver();

        IndexNameExpressionResolver.Context context = new IndexNameExpressionResolver.Context(state, IndicesOptions.lenientExpandOpen());
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("test*X*"))), equalTo(newHashSet("testXXX", "testXXY", "testXYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("test*X*Y"))), equalTo(newHashSet("testXXY", "testXYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("kuku*Y*"))), equalTo(newHashSet("kukuYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("*Y*"))), equalTo(newHashSet("testXXY", "testXYY", "testYYY", "kukuYYY")));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("test*Y*X"))).size(), equalTo(0));
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("*Y*X"))).size(), equalTo(0));
    }

    public void testAll() {
        MetaData.Builder mdBuilder = MetaData.builder()
            .put(indexBuilder("testXXX"))
            .put(indexBuilder("testXYY"))
            .put(indexBuilder("testYYY"));
        ClusterState state = ClusterState.builder(new ClusterName("_name")).metaData(mdBuilder).build();
        IndexNameExpressionResolver.WildcardExpressionResolver resolver = new IndexNameExpressionResolver.WildcardExpressionResolver();

        IndexNameExpressionResolver.Context context = new IndexNameExpressionResolver.Context(state, IndicesOptions.lenientExpandOpen());
        assertThat(newHashSet(resolver.resolve(context, Arrays.asList("_all"))), equalTo(newHashSet("testXXX", "testXYY", "testYYY")));
    }

    private IndexMetaData.Builder indexBuilder(String index) {
        return IndexMetaData.builder(index).settings(settings(Version.CURRENT).put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1).put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0));
    }

}