/* * Licensed to Crate.IO 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.operation.reference.sys.node; import io.crate.metadata.sys.SysNodesTableInfo; import io.crate.operation.reference.sys.SysNodeObjectReference; import org.apache.lucene.util.BytesRef; import org.apache.lucene.util.Constants; import org.elasticsearch.common.lucene.BytesRefs; import org.elasticsearch.monitor.os.OsInfo; public class NodeOsInfoExpression extends SysNodeObjectReference { private static final String AVAILABLE_PROCESSORS = "available_processors"; private static final String OS = "name"; private static final String ARCH = "arch"; private static final String VERSION = "version"; private static final BytesRef OS_NAME = BytesRefs.toBytesRef(Constants.OS_NAME); private static final BytesRef OS_ARCH = BytesRefs.toBytesRef(Constants.OS_ARCH); private static final BytesRef OS_VERSION = BytesRefs.toBytesRef(Constants.OS_VERSION); abstract class OsInfoExpression extends SysNodeExpression<Object> { } public NodeOsInfoExpression(OsInfo info) { addChildImplementations(info); } private void addChildImplementations(final OsInfo info) { childImplementations.put(AVAILABLE_PROCESSORS, new OsInfoExpression() { @Override public Integer value() { return info.getAvailableProcessors(); } }); childImplementations.put(OS, new OsInfoExpression() { @Override public BytesRef value() { return OS_NAME; } }); childImplementations.put(ARCH, new OsInfoExpression() { @Override public BytesRef value() { return OS_ARCH; } }); childImplementations.put(VERSION, new OsInfoExpression() { @Override public BytesRef value() { return OS_VERSION; } }); childImplementations.put(SysNodesTableInfo.SYS_COL_OS_INFO_JVM, new NodeOsJvmExpression()); } }