Create a pip package for pipe_io_server

pipe_io_server/clients/java/Example.java

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+public class Example {
+    public static void main(String[] args) {
+        try (PipeIO pipeio = new PipeIO("in", "out")) {
+            pipeio.reader.setMessageHandler(new MessageHandler(){
+                @Override
+                public void call(String msg) {
+                    pipeio.writer.sendMessage(msg);
+                }
+            });
+            pipeio.reader.run();
+        }
+    }
+}

pipe_io_server/clients/java/MessageHandler.java

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+public interface MessageHandler {
+    public void call(String msg);
+}

pipe_io_server/clients/java/PipeIO.java

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+import java.io.IOException;
+
+
+public class PipeIO implements AutoCloseable {
+    public PipeReader reader;
+    public PipeWriter writer;
+
+    public PipeIO(String in_pipe_path, String out_pipe_path) {
+        this.reader = new PipeReader(in_pipe_path);
+        this.writer = new PipeWriter(out_pipe_path);
+    }
+
+    public void close() {
+        this.reader.close();
+        this.writer.close();
+    }
+}

pipe_io_server/clients/java/PipeReader.java

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+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.lang.AutoCloseable;
+
+
+public class PipeReader implements AutoCloseable {
+    private BufferedReader pipe;
+    private MessageHandler messageHandler;
+
+    public PipeReader(String pipe_path) {
+        try {
+            this.pipe = new BufferedReader(new FileReader(pipe_path));
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+        this.messageHandler = new MessageHandler(){
+            @Override
+            public void call(String msg) {}
+        };
+    }
+
+    public void close() {
+        try {
+            this.pipe.close();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    public void setMessageHandler(MessageHandler handler) {
+        this.messageHandler = handler;
+    }
+
+    public void run() {
+        String msg;
+        while ((msg = this.recvMessage()) != null) {
+            this.messageHandler.call(msg);
+        }
+    }
+
+    public String recvMessage() {
+        try {
+            return this.pipe.readLine();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+}

pipe_io_server/clients/java/PipeWriter.java

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+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.lang.AutoCloseable;
+
+
+public class PipeWriter implements AutoCloseable {
+    private BufferedWriter pipe;
+
+    public PipeWriter(String pipe_path) {
+        try {
+            this.pipe = new BufferedWriter(new FileWriter(pipe_path));
+        } catch(IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    public void close() {
+        try {
+            this.pipe.close();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    public void sendMessage(String msg) {
+        try {
+            this.pipe.write(msg + "\n");
+            this.pipe.flush();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+}