jaxws/src/jdk.xml.bind/share/classes/com/sun/codemodel/internal/writer/PrologCodeWriter.java
changeset 25871 b80b84e87032
parent 22678 ac1ea46be942
child 42124 640a383428fb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxws/src/jdk.xml.bind/share/classes/com/sun/codemodel/internal/writer/PrologCodeWriter.java	Sun Aug 17 15:52:15 2014 +0100
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 1997, 2012, 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 com.sun.codemodel.internal.writer;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.Writer;
+
+import com.sun.codemodel.internal.CodeWriter;
+import com.sun.codemodel.internal.JPackage;
+
+/**
+ * Writes all the source files under the specified file folder and
+ * inserts a file prolog comment in each java source file.
+ *
+ * @author
+ *  Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
+ */
+public class PrologCodeWriter extends FilterCodeWriter {
+
+    /** prolog comment */
+    private final String prolog;
+
+    /**
+     * @param core
+     *      This CodeWriter will be used to actually create a storage for files.
+     *      PrologCodeWriter simply decorates this underlying CodeWriter by
+     *      adding prolog comments.
+     * @param prolog
+     *      Strings that will be added as comments.
+     *      This string may contain newlines to produce multi-line comments.
+     *      '//' will be inserted at the beginning of each line to make it
+     *      a valid Java comment, so the caller can just pass strings like
+     *      "abc\ndef"
+     */
+    public PrologCodeWriter( CodeWriter core, String prolog ) {
+        super(core);
+        this.prolog = prolog;
+    }
+
+
+    public Writer openSource(JPackage pkg, String fileName) throws IOException {
+        Writer w = super.openSource(pkg,fileName);
+
+        PrintWriter out = new PrintWriter(w);
+
+        // write prolog if this is a java source file
+        if( prolog != null ) {
+            out.println( "//" );
+
+            String s = prolog;
+            int idx;
+            while( (idx=s.indexOf('\n'))!=-1 ) {
+                out.println("// "+ s.substring(0,idx) );
+                s = s.substring(idx+1);
+            }
+            out.println("//");
+            out.println();
+        }
+        out.flush();    // we can't close the stream for that would close the undelying stream.
+
+        return w;
+    }
+}