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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2008 Oracle. All rights reserved.
*
* $Id: DplDump.java,v 1.3 2008/01/07 14:28:43 cwl Exp $
*/
package persist;
import java.io.File;
import com.sleepycat.je.DatabaseException;
import com.sleepycat.je.Environment;
import com.sleepycat.je.EnvironmentConfig;
import com.sleepycat.persist.EntityCursor;
import com.sleepycat.persist.EntityStore;
import com.sleepycat.persist.PrimaryIndex;
import com.sleepycat.persist.StoreConfig;
import com.sleepycat.persist.model.EntityMetadata;
import com.sleepycat.persist.model.EntityModel;
import com.sleepycat.persist.raw.RawObject;
import com.sleepycat.persist.raw.RawStore;
import com.sleepycat.persist.raw.RawType;
/**
* Dumps a store or all stores to standard output in raw XML format. This
* sample is intended to be modifed to dump in application specific ways.
* @see #usage
*/
public class DplDump {
private File envHome;
private String storeName;
private boolean dumpMetadata;
private Environment env;
public static void main(String[] args) {
try {
DplDump dump = new DplDump(args);
dump.open();
dump.execute();
dump.close();
} catch (Throwable e) {
e.printStackTrace();
System.exit(1);
}
}
private DplDump(String[] args) {
for (int i = 0; i < args.length; i += 1) {
String name = args[i];
String val = null;
if (i < args.length - 1 && !args[i + 1].startsWith("-")) {
i += 1;
val = args[i];
}
if (name.equals("-h")) {
if (val == null) {
usage("No value after -h");
}
envHome = new File(val);
} else if (name.equals("-s")) {
if (val == null) {
usage("No value after -s");
}
storeName = val;
} else if (name.equals("-meta")) {
dumpMetadata = true;
} else {
usage("Unknown arg: " + name);
}
}
if (envHome == null) {
usage("-h not specified");
}
}
private void usage(String msg) {
if (msg != null) {
System.out.println(msg);
}
System.out.println
("usage:" +
"\njava " + DplDump.class.getName() +
"\n -h <envHome>" +
"\n # Environment home directory" +
"\n [-meta]" +
"\n # Dump metadata; default: false" +
"\n [-s <storeName>]" +
"\n # Store to dump; default: dump all stores");
System.exit(2);
}
private void open()
throws DatabaseException {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setReadOnly(true);
env = new Environment(envHome, envConfig);
}
private void close()
throws DatabaseException {
env.close();
}
private void execute()
throws DatabaseException {
if (storeName != null) {
dump();
} else {
for (String name : EntityStore.getStoreNames(env)) {
storeName = name;
dump();
}
}
}
private void dump()
throws DatabaseException {
StoreConfig storeConfig = new StoreConfig();
storeConfig.setReadOnly(true);
RawStore store = new RawStore(env, storeName, storeConfig);
EntityModel model = store.getModel();
for (String clsName : model.getKnownClasses()) {
EntityMetadata meta = model.getEntityMetadata(clsName);
if (meta != null) {
if (dumpMetadata) {
for (RawType type : model.getAllRawTypeVersions(clsName)) {
System.out.println(type);
}
} else {
PrimaryIndex<Object,RawObject> index =
store.getPrimaryIndex(clsName);
EntityCursor<RawObject> entities = index.entities();
for (RawObject entity : entities) {
System.out.println(entity);
}
entities.close();
}
}
}
store.close();
}
}
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