Move DSpace kernel codebase to dspace-api

git-svn-id: http://scm.dspace.org/svn/repo/trunk@1957 9c30dcfa-912a-0410-8fc2-9e0234be79fd
2025-10-14 13:33:08 +00:00 · 2007-05-23 16:23:06 +00:00
parent faa66ba48c
commit ba4e7f6b9e
179 changed files with 0 additions and 0 deletions
--- a/dspace-api/src/main/java/org/dspace/checker/LimitedCountDispatcher.java
+++ b/dspace-api/src/main/java/org/dspace/checker/LimitedCountDispatcher.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2004-2005, Hewlett-Packard Company and Massachusetts
+ * Institute of Technology.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Hewlett-Packard Company nor the name of the
+ * Massachusetts Institute of Technology nor the names of their
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+package org.dspace.checker;
+
+import java.sql.SQLException;
+
+import org.dspace.core.PluginManager;
+
+/**
+ * Decorator that dispatches a specified number of bitstreams from a delegate
+ * dispatcher.
+ * 
+ * @author Jim Downing
+ * @author Grace Carpenter
+ * @author Nathan Sarr
+ * 
+ */
+public class LimitedCountDispatcher implements BitstreamDispatcher
+{
+    /** The remaining number of bitstreams to iterate through. */
+    private int remaining = 1;
+
+    /** The dispatcher to delegate to for retrieving bitstreams. */
+    private BitstreamDispatcher delegate = null;
+
+    /**
+     * Default constructor uses PluginManager
+     */
+    public LimitedCountDispatcher()
+    {
+        this((BitstreamDispatcher) PluginManager
+                .getSinglePlugin(BitstreamDispatcher.class));
+    }
+
+    /**
+     * Constructor.
+     * 
+     * @param del
+     *            The bitstream distpatcher to delegate to.
+     * @param count
+     *            the number of bitstreams to check.
+     */
+    public LimitedCountDispatcher(BitstreamDispatcher del, int count)
+    {
+        this(del);
+        remaining = count;
+    }
+
+    /**
+     * Constructor.
+     * 
+     * @param del
+     *            The bitstream distpatcher to delegate to.
+     */
+    public LimitedCountDispatcher(BitstreamDispatcher del)
+    {
+        delegate = del;
+    }
+
+    /**
+     * Retreives the next bitstream to be checked.
+     * 
+     * @return the bitstream id
+     * @throws SQLException
+     *             if database error occurs.
+     */
+    public int next()
+    {
+        if (remaining > 0)
+        {
+            remaining--;
+
+            return delegate.next();
+        }
+        else
+        {
+            return BitstreamDispatcher.SENTINEL;
+        }
+    }
+}