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/CommandSessionImpl.java b/gogo/src/aQute/shell/runtime/CommandSessionImpl.java
new file mode 100644
index 0000000..2607554
--- /dev/null
+++ b/gogo/src/aQute/shell/runtime/CommandSessionImpl.java
@@ -0,0 +1,215 @@
+/*
+ * 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.lang.reflect.*;
+import java.util.*;
+
+import org.osgi.service.command.*;
+
+public class CommandSessionImpl implements CommandSession, Converter {
+ String COLUMN = "%-20s %s\n";
+ InputStream in;
+ PrintStream out;
+ PrintStream err;
+ CommandShellImpl service;
+ Map<Object, Object> variables = new HashMap<Object, Object>();
+
+ CommandSessionImpl(CommandShellImpl service, InputStream in,
+ PrintStream out, PrintStream err) {
+ this.service = service;
+ this.in = in;
+ this.out = out;
+ this.err = err;
+ }
+
+ public void close() {
+ }
+
+ public Object execute(CharSequence commandline) throws Exception {
+ assert service != null;
+ assert service.threadIO != null;
+
+ Closure impl = new Closure(this, null, commandline);
+ Object result = impl.execute(this, null);
+ return result;
+ }
+
+ public InputStream getKeybord() {
+ return in;
+ }
+
+ public Object get(String name) {
+ if (variables != null && variables.containsKey(name))
+ return variables.get(name);
+
+ return service.get(name);
+ }
+
+ public void put(String name, Object value) {
+ variables.put(name, value);
+ }
+
+ public PrintStream getConsole() {
+ return out;
+ }
+
+
+ @SuppressWarnings("unchecked")
+ public
+ CharSequence format(Object target, int level, Converter escape ) throws Exception {
+ if (target == null)
+ return "null";
+
+ if (target instanceof CharSequence )
+ return (CharSequence) target;
+
+ for (Converter c : service.converters) {
+ CharSequence s = c.format(target, level, this);
+ if (s != null)
+ return s;
+ }
+
+ if (target.getClass().isArray()) {
+ if ( target.getClass().getComponentType().isPrimitive()) {
+ if ( target.getClass().getComponentType() == boolean.class )
+ return Arrays.toString((boolean[]) target);
+ else if ( target.getClass().getComponentType() == byte.class )
+ return Arrays.toString((byte[]) target);
+ else if ( target.getClass().getComponentType() == short.class )
+ return Arrays.toString((short[]) target);
+ else if ( target.getClass().getComponentType() == int.class )
+ return Arrays.toString((int[]) target);
+ else if ( target.getClass().getComponentType() == long.class )
+ return Arrays.toString((long[]) target);
+ else if ( target.getClass().getComponentType() == float.class )
+ return Arrays.toString((float[]) target);
+ else if ( target.getClass().getComponentType() == double.class )
+ return Arrays.toString((double[]) target);
+ else if ( target.getClass().getComponentType() == char.class )
+ return Arrays.toString((char[]) target);
+ }
+ target = Arrays.asList((Object[]) target);
+ }
+ if (target instanceof Collection) {
+ if (level == Converter.INSPECT) {
+ StringBuilder sb = new StringBuilder();
+ Collection<?> c = (Collection<?>) target;
+ for (Object o : c) {
+ sb.append(format(o, level + 1, this));
+ sb.append("\n");
+ }
+ return sb;
+ } else if (level == Converter.LINE) {
+ StringBuilder sb = new StringBuilder();
+ String del = "[";
+ Collection<?> c = (Collection<?>) target;
+ for (Object o : c) {
+ sb.append(del);
+ sb.append(format(o, level + 1, this));
+ del = ", ";
+ }
+ sb.append("]");
+ return sb;
+ }
+ }
+ if ( target instanceof Dictionary ) {
+ Map<Object,Object> result = new HashMap<Object,Object>();
+ for ( Enumeration e = ((Dictionary)target).keys(); e.hasMoreElements(); ) {
+ Object key = e.nextElement();
+ result.put(key, ((Dictionary)target).get(key));
+ }
+ target = result;
+ }
+ if (target instanceof Map) {
+ if (level == Converter.INSPECT) {
+ StringBuilder sb = new StringBuilder();
+ Map<?,?> c = (Map<?,?>) target;
+ for (Map.Entry<?,?> entry : c.entrySet()) {
+ CharSequence key = format(entry.getKey(), level + 1, this);
+ sb.append(key);
+ for ( int i=key.length(); i<20; i++ )
+ sb.append(' ');
+ sb.append(format(entry.getValue(), level + 1, this));
+ sb.append("\n");
+ }
+ return sb;
+ } else if (level == Converter.LINE) {
+ StringBuilder sb = new StringBuilder();
+ String del = "[";
+ Map<?,?> c = (Map<?,?>) target;
+ for (Map.Entry<?,?> entry : c.entrySet()) {
+ sb.append(del);
+ sb.append(format(entry, level + 1,this));
+ del = ", ";
+ }
+ sb.append("]");
+ return sb;
+ }
+ }
+ if (level == Converter.INSPECT)
+ return inspect(target);
+ else
+ return target.toString();
+ }
+
+ CharSequence inspect(Object b) {
+ boolean found = false;
+ Formatter f = new Formatter();
+ Method methods[] = b.getClass().getMethods();
+ for (Method m : methods) {
+ try {
+ String name = m.getName();
+ if (m.getName().startsWith("get")
+ && !m.getName().equals("getClass")
+ && m.getParameterTypes().length == 0
+ && Modifier.isPublic(m.getModifiers())) {
+ found = true;
+ name = name.substring(3);
+ m.setAccessible(true);
+ Object value = m.invoke(b, (Object[]) null);
+ f.format(COLUMN, name, format(value, Converter.LINE, this));
+ }
+ } catch (IllegalAccessException e) {
+ // Ignore
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ if (found)
+ return (StringBuilder) f.out();
+ else
+ return b.toString();
+ }
+
+
+ public Object convert(Class<?> desiredType, Object in) {
+ return service.convert(desiredType, in);
+ }
+
+ public CharSequence format(Object result, int inspect) {
+ try {
+ return format(result,inspect,this);
+ } catch(Exception e ) {
+ return "<can not format " + result + ":" + e;
+ }
+ }
+
+}