1 files changed, 73 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/afp/parser/MODCAParser.java b/src/java/org/apache/fop/afp/parser/MODCAParser.java
new file mode 100644
index 000000000..98058a38e
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+++ b/src/java/org/apache/fop/afp/parser/MODCAParser.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.afp.parser;
+
+import java.io.DataInputStream;
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * An simple MO:DCA/AFP parser.
+ */
+public class MODCAParser {
+
+    private DataInputStream din;
+
+    /**
+     * Main constructor
+     * @param in the {@link InputStream} to read the AFP file from.
+     */
+    public MODCAParser(InputStream in) {
+        if (!in.markSupported()) {
+            in = new java.io.BufferedInputStream(in);
+        }
+        this.din = new DataInputStream(in);
+    }
+
+    /**
+     * Returns the {@link DataInputStream} used for parsing structured fields.
+     * @return the data input stream
+     */
+    public DataInputStream getDataInputStream() {
+        return this.din;
+    }
+
+    /**
+     * Reads the next structured field from the input stream.
+     * <p>
+     * No structure validation of the MO:DCA file is performed.
+     * @return a new unparsed structured field (or null when parsing is finished).
+     * @throws IOException if an I/O error occurs
+     */
+    public UnparsedStructuredField readNextStructuredField() throws IOException {
+        din.mark(1);
+        try {
+            byte b = din.readByte(); //Skip 0x5A character if necessary (ex. AFP)
+            if (b != 0x5A) {
+                din.reset(); //Not necessary for MO:DCA files
+            }
+        } catch (EOFException eof) {
+            return null;
+        }
+        return UnparsedStructuredField.readStructuredField(getDataInputStream());
+    }
+
+}