mirror of
https://github.com/OpenHFT/Chronicle-Map.git
synced 2021-09-13 01:26:12 +00:00
84 lines
2.9 KiB
Java
84 lines
2.9 KiB
Java
/*
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* Copyright 2014 Higher Frequency Trading
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*
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* http://www.higherfrequencytrading.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.openhft.chronicle.map;
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import net.openhft.chronicle.hash.replication.TcpConfig;
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import java.io.File;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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import java.net.InetSocketAddress;
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import java.util.Arrays;
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import java.util.concurrent.TimeUnit;
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/**
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* @author Rob Austin.
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*/
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public class Builder {
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// added to ensure uniqueness
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static int count;
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static String WIN_OS = "WINDOWS";
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public static File getPersistenceFile() throws IOException {
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String TMP = System.getProperty("java.io.tmpdir");
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File file = new File(TMP + "/chm-test" + System.nanoTime() + (count++));
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//Not Guaranteed to work on Windows, since OS file-lock takes precedence
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if (System.getProperty("os.name").indexOf(WIN_OS) > 0) {
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/*Windows will lock a file that are currently in use. You cannot delete it, however,
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using setwritable() and then releasing RandomRW lock adds the file to JVM exit cleanup.
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This will only work if the user is an admin on windows.
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*/
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file.setWritable(true);//just in case relative path was used.
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RandomAccessFile raf = new RandomAccessFile(file, "rw");
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raf.close();//allows closing the file access on windows. forcing to close access. Only works for admin-access.
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}
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//file.delete(); //isnt guaranteed on windows.
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file.deleteOnExit();//isnt guaranteed on windows.
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return file;
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}
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public static <T extends ChronicleMap<Integer, Void>> T newMapVoid(
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final byte identifier,
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final int serverPort,
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final InetSocketAddress... endpoints) throws IOException {
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return (T) newTcpSocketShmBuilder(Integer.class, Void.class,
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identifier, serverPort, endpoints).create();
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}
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public static <K, V> ChronicleMapBuilder<K, V> newTcpSocketShmBuilder(
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Class<K> kClass, Class<V> vClass,
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final byte identifier,
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final int serverPort,
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final InetSocketAddress... endpoints) throws IOException {
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TcpConfig tcpConfig = TcpConfig.unknownTopology(serverPort, Arrays.asList(endpoints))
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.heartBeatInterval(1L, TimeUnit.SECONDS);
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return ChronicleMapBuilder.of(kClass, vClass)
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.replication(identifier, tcpConfig);
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}
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}
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