| /* |
| * 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 flex.messaging.util; |
| |
| import flex.messaging.log.Log; |
| |
| /** |
| * Simple utility to trace an Object graph out to a StringBuffer. |
| * |
| * Note that new lines are NOT added after the individual values |
| * in complex type properties. |
| * |
| * |
| */ |
| public class ObjectTrace |
| { |
| |
| |
| /* This boolean is used for suppressing debug output for selected properties. |
| * The logger will check this before printing a property. |
| */ |
| public boolean nextElementExclude; |
| |
| public ObjectTrace() |
| { |
| buffer = new StringBuffer(4096); |
| } |
| |
| public ObjectTrace(int bufferSize) |
| { |
| buffer = new StringBuffer(bufferSize); |
| } |
| |
| public String toString() |
| { |
| return buffer.toString(); |
| } |
| |
| public void write(Object o) |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append(String.valueOf(o)); |
| } |
| |
| public void writeNull() |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append("null"); |
| } |
| |
| public void writeRef(int ref) |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append("(Ref #").append(ref).append(")"); |
| } |
| |
| public void writeString(String s) |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append("\"").append(s).append("\""); |
| } |
| |
| public void startArray(String header) |
| { |
| if (header != null && header.length() > 0) |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append(header).append(newLine); |
| } |
| |
| m_indent++; |
| m_nested++; |
| } |
| |
| public void arrayElement(int index) |
| { |
| buffer.append(indentString()).append("[").append(index).append("] = "); |
| } |
| |
| public void endArray() |
| { |
| m_indent--; |
| m_nested--; |
| } |
| |
| public void startObject(String header) |
| { |
| if (header != null && header.length() > 0) |
| { |
| if (m_nested <= 0) |
| buffer.append(indentString()); |
| |
| buffer.append(header).append(newLine); |
| } |
| |
| m_indent++; |
| m_nested++; |
| } |
| |
| public void namedElement(String name) |
| { |
| if (Log.isExcludedProperty(name)) |
| { |
| nextElementExclude = true; |
| } |
| |
| buffer.append(indentString()).append(name).append(" = "); |
| } |
| |
| public void endObject() |
| { |
| m_indent--; |
| m_nested--; |
| } |
| |
| public void newLine() |
| { |
| boolean alreadyPadded = false; |
| int length = buffer.length(); |
| |
| if (length > 3) |
| { |
| String tail = buffer.substring(length - 3, length - 1); //Get last two chars in buffer |
| alreadyPadded = tail.equals(newLine); |
| } |
| |
| if (!alreadyPadded) |
| buffer.append(newLine); |
| } |
| |
| /** |
| * Uses the static member, m_indent to create a string of spaces of |
| * the appropriate indentation. |
| * |
| * @return the ident string. |
| */ |
| protected String indentString() |
| { |
| StringBuffer sb = new StringBuffer(); |
| for (int i = 0; i < m_indent; ++i) |
| { |
| sb.append(" "); |
| } |
| return sb.toString(); |
| } |
| |
| protected StringBuffer buffer; |
| protected int m_indent; |
| protected int m_nested; |
| public static String newLine = StringUtils.NEWLINE; |
| } |