Initial commit of OSGi Shell contribution. (FELIX-946)
git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@783826 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/gogo/src/aQute/shell/runtime/Pipe.java b/gogo/src/aQute/shell/runtime/Pipe.java
new file mode 100644
index 0000000..c6f04e8
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+++ b/gogo/src/aQute/shell/runtime/Pipe.java
@@ -0,0 +1,82 @@
+/*
+ * 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 aQute.shell.runtime;
+
+import java.io.*;
+import java.util.*;
+
+import org.osgi.service.command.*;
+
+public class Pipe extends Thread {
+ InputStream in;
+ PrintStream out;
+ PipedOutputStream pout;
+ Closure closure;
+ Exception exception;
+ Object result;
+ List<List<CharSequence>> statements;
+
+ public Pipe(Closure closure, List<List<CharSequence>> statements) {
+ super("pipe-" + statements);
+ this.closure = closure;
+ this.statements = statements;
+ }
+
+ public void setIn(InputStream in) {
+ this.in = in;
+ }
+
+ public void setOut(PrintStream out) {
+ this.out = out;
+ }
+
+ public Pipe connect(Pipe next) throws IOException {
+ next.setOut(out);
+ pout = new PipedOutputStream();
+ next.setIn(new PipedInputStream(pout));
+ out = new PrintStream(pout);
+ return next;
+
+ }
+
+ public void run() {
+ closure.session.service.threadIO.setStreams(in, out, System.err);
+ try {
+ for (List<CharSequence> statement : statements) {
+ result = closure.executeStatement(statement);
+ if ( result != null && pout != null )
+ out.println(closure.session.format(result, Converter.INSPECT));
+ }
+ } catch (Exception e) {
+ exception = e;
+ } finally {
+ out.flush();
+ closure.session.service.threadIO.close();
+ try {
+ if ( in instanceof PipedInputStream )
+ in.close();
+ if (pout!=null)
+ pout.close();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+}