1 files changed, 72 insertions, 0 deletions
diff --git a/app/src/main/java/org/apache/commons/net/ftp/parser/CompositeFileEntryParser.java b/app/src/main/java/org/apache/commons/net/ftp/parser/CompositeFileEntryParser.java
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+++ b/app/src/main/java/org/apache/commons/net/ftp/parser/CompositeFileEntryParser.java
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+/*
+ * 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.
+ */
+
+package org.apache.commons.net.ftp.parser;
+
+import org.apache.commons.net.ftp.FTPFile;
+import org.apache.commons.net.ftp.FTPFileEntryParser;
+import org.apache.commons.net.ftp.FTPFileEntryParserImpl;
+
+/**
+ * This implementation allows to pack some FileEntryParsers together
+ * and handle the case where to returned dirstyle isnt clearly defined.
+ * The matching parser will be cached.
+ * If the cached parser wont match due to the server changed the dirstyle,
+ * a new matching parser will be searched.
+ *
+ * @author Mario Ivankovits <mario@ops.co.at>
+ */
+public class CompositeFileEntryParser extends FTPFileEntryParserImpl
+{
+    private final FTPFileEntryParser[] ftpFileEntryParsers;
+    private FTPFileEntryParser cachedFtpFileEntryParser;
+
+    public CompositeFileEntryParser(FTPFileEntryParser[] ftpFileEntryParsers)
+    {
+        super();
+
+        this.cachedFtpFileEntryParser = null;
+        this.ftpFileEntryParsers = ftpFileEntryParsers;
+    }
+
+    public FTPFile parseFTPEntry(String listEntry)
+    {
+        if (cachedFtpFileEntryParser != null)
+        {
+            FTPFile matched = cachedFtpFileEntryParser.parseFTPEntry(listEntry);
+            if (matched != null)
+            {
+                return matched;
+            }
+        }
+        else
+        {
+            for (int iterParser=0; iterParser < ftpFileEntryParsers.length; iterParser++)
+            {
+                FTPFileEntryParser ftpFileEntryParser = ftpFileEntryParsers[iterParser];
+
+                FTPFile matched = ftpFileEntryParser.parseFTPEntry(listEntry);
+                if (matched != null)
+                {
+                    cachedFtpFileEntryParser = ftpFileEntryParser;
+                    return matched;
+                }
+            }
+        }
+        return null;
+    }
+}