1 files changed, 148 insertions, 0 deletions
diff --git a/db-4.8.30/examples_java/src/persist/DplDump.java b/db-4.8.30/examples_java/src/persist/DplDump.java
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+++ b/db-4.8.30/examples_java/src/persist/DplDump.java
@@ -0,0 +1,148 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 2002-2009 Oracle.  All rights reserved.
+ *
+ * $Id$
+ */
+
+package persist;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+
+import com.sleepycat.db.DatabaseException;
+import com.sleepycat.db.Environment;
+import com.sleepycat.db.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.dump();
+            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 (storeName == null) {
+            usage("-s not specified");
+        }
+        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");
+
+        System.exit(2);
+    }
+
+    private void open()
+        throws DatabaseException, FileNotFoundException {
+
+        EnvironmentConfig envConfig = new EnvironmentConfig();
+        envConfig.setInitializeCache(true);
+        envConfig.setInitializeLocking(true);
+        env = new Environment(envHome, envConfig);
+    }
+
+    private void close()
+        throws DatabaseException {
+
+        env.close();
+    }
+
+    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();
+    }
+}