io.crate.metadata.shard.ShardReferenceResolver.java Source code

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Here is the source code for io.crate.metadata.shard.ShardReferenceResolver.java

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/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.metadata.shard;

import com.google.common.collect.ImmutableMap;
import io.crate.exceptions.ResourceUnknownException;
import io.crate.exceptions.UnhandledServerException;
import io.crate.metadata.*;
import io.crate.metadata.doc.DocTableInfo;
import io.crate.operation.reference.partitioned.PartitionedColumnExpression;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.index.Index;

import java.util.Locale;
import java.util.Map;

public class ShardReferenceResolver extends AbstractReferenceResolver {

    private static final ESLogger LOGGER = Loggers.getLogger(ShardReferenceResolver.class);

    @Inject
    public ShardReferenceResolver(Index index, Schemas schemas,
            final Map<ReferenceIdent, ReferenceImplementation> globalImplementations,
            final Map<ReferenceIdent, ShardReferenceImplementation> shardImplementations) {
        ImmutableMap.Builder<ReferenceIdent, ReferenceImplementation> builder = ImmutableMap.builder();
        builder.putAll(globalImplementations).putAll(shardImplementations);

        if (PartitionName.isPartition(index.name())) {
            PartitionName partitionName;
            try {
                partitionName = PartitionName.fromIndexOrTemplate(index.name());
            } catch (IllegalArgumentException e) {
                throw new UnhandledServerException(String.format(Locale.ENGLISH,
                        "Unable to load PARTITIONED BY columns from partition %s", index.name()), e);
            }
            TableIdent tableIdent = partitionName.tableIdent();
            try {
                DocTableInfo info = (DocTableInfo) schemas.getTableInfo(tableIdent);
                if (!schemas.isOrphanedAlias(info)) {
                    assert info.isPartitioned();
                    int i = 0;
                    int numPartitionedColumns = info.partitionedByColumns().size();

                    assert partitionName.values()
                            .size() == numPartitionedColumns : "invalid number of partitioned columns";
                    for (Reference partitionedInfo : info.partitionedByColumns()) {
                        builder.put(partitionedInfo.ident(),
                                new PartitionedColumnExpression(partitionedInfo, partitionName.values().get(i)));
                        i++;
                    }
                } else {
                    LOGGER.error("Orphaned partition '{}' with missing table '{}' found", index, tableIdent.fqn());
                }
            } catch (ResourceUnknownException e) {
                LOGGER.error("Orphaned partition '{}' with missing table '{}' found", index, tableIdent.fqn());
            }
        }
        this.implementations.putAll(builder.build());
    }
}