jdk/src/jdk.jlink/share/classes/jdk/tools/jlink/internal/SymLinkResourcePoolEntry.java
changeset 42670 d833113eb7d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.jlink/share/classes/jdk/tools/jlink/internal/SymLinkResourcePoolEntry.java	Mon Dec 12 18:56:50 2016 -0800
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.tools.jlink.internal;
+
+import jdk.tools.jlink.plugin.ResourcePoolEntry;
+
+import java.io.InputStream;
+import java.util.Objects;
+
+/**
+ * A symbolic link ResourcePoolEntry.  It will be created in the image
+ * as a symbolic link to the target when the target platform supports
+ * symbolic links; otherwise, it will create a file containing the
+ * path to the target file.
+ */
+public class SymLinkResourcePoolEntry extends AbstractResourcePoolEntry {
+    private final ResourcePoolEntry target;
+
+    /**
+     * Create a new SymLinkResourcePoolEntry.
+     *
+     * @param module The module name.
+     * @param path   The path for the resource content.
+     * @param type   The data type.
+     * @param target Target entry in the image
+     */
+    public SymLinkResourcePoolEntry(String module,
+                                    String path,
+                                    ResourcePoolEntry.Type type,
+                                    ResourcePoolEntry target) {
+        super(module, path, type);
+        this.target = Objects.requireNonNull(target);
+    }
+
+    @Override
+    public long contentLength() {
+        return target.contentLength();
+    }
+
+    @Override
+    public InputStream content() {
+        return target.content();
+    }
+
+    @Override
+    public ResourcePoolEntry linkedTarget() {
+        return target;
+    }
+}