/*
* Copyright © 2015-2016 Cask Data, Inc.
*
* 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 co.cask.cdap.cli.command.metadata;
import co.cask.cdap.cli.ArgumentName;
import co.cask.cdap.cli.CLIConfig;
import co.cask.cdap.cli.util.AbstractCommand;
import co.cask.cdap.cli.util.table.Table;
import co.cask.cdap.client.MetadataClient;
import co.cask.cdap.proto.id.EntityId;
import co.cask.cdap.proto.metadata.MetadataScope;
import co.cask.common.cli.Arguments;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.inject.Inject;
import java.io.PrintStream;
import java.util.List;
import java.util.Map;
import javax.annotation.Nullable;
/**
* Gets the metadata properties of an entity.
*/
public class GetMetadataPropertiesCommand extends AbstractCommand {
private final MetadataClient client;
@Inject
public GetMetadataPropertiesCommand(CLIConfig cliConfig, MetadataClient client) {
super(cliConfig);
this.client = client;
}
@Override
public void perform(Arguments arguments, PrintStream output) throws Exception {
EntityId entity = EntityId.fromString(arguments.get(ArgumentName.ENTITY.toString()));
String scope = arguments.getOptional(ArgumentName.METADATA_SCOPE.toString());
Map<String, String> properties = scope == null ? client.getProperties(entity.toId()) :
client.getProperties(entity.toId(), MetadataScope.valueOf(scope.toUpperCase()));
Table table = Table.builder()
.setHeader("key", "value")
.setRows(
Iterables.transform(properties.entrySet(), new Function<Map.Entry<String, String>, List<String>>() {
@Nullable
@Override
public List<String> apply(@Nullable Map.Entry<String, String> entry) {
return Lists.newArrayList(entry.getKey(), entry.getValue());
}
})
).build();
cliConfig.getTableRenderer().render(cliConfig, output, table);
}
@Override
public String getPattern() {
return String.format("get metadata-properties <%s> [scope <%s>]",
ArgumentName.ENTITY, ArgumentName.METADATA_SCOPE);
}
@Override
public String getDescription() {
return "Gets the metadata properties of an entity";
}
}