Created InputReader.

src/main/java/info/fetter/logstashforwarder/Reader.java

@@ -0,0 +1,68 @@
+package info.fetter.logstashforwarder;
+
+
+/*
+ * Copyright 2015 Didier Fetter
+ *
+ * Licensed 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.
+ *
+ */
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+
+
+public abstract class Reader {
+	protected ProtocolAdapter adapter;
+	protected int spoolSize = 0;
+	protected List<Event> eventList;
+	protected final int STRINGBUILDER_INITIAL_CAPACITY = 1000;
+	protected StringBuilder stringBuilder;
+	private String hostname;
+	{
+		try {
+			hostname = InetAddress.getLocalHost().getHostName();
+		} catch (UnknownHostException e) {
+			throw new RuntimeException(e);
+		}
+	}
+	
+	protected Reader(int spoolSize) {
+		this.spoolSize = spoolSize;
+		eventList = new ArrayList<Event>(spoolSize);
+	}
+	
+	protected void addEvent(FileState state, long pos, String line) throws IOException {
+		addEvent(state.getFile().getCanonicalPath(), state.getFields(), pos, line);
+	}
+	
+	protected void addEvent(String fileName, Event fields, long pos, String line) throws IOException {
+		Event event = new Event(fields);
+		event.addField("file", fileName)
+		.addField("offset", pos)
+		.addField("line", line)
+		.addField("host", hostname);
+		eventList.add(event);
+	}
+	
+	public ProtocolAdapter getAdapter() {
+		return adapter;
+	}
+
+	public void setAdapter(ProtocolAdapter adapter) {
+		this.adapter = adapter;
+	}
+}