| /* |
| * |
| * 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 org.apache.qpid.proton.engine.impl; |
| |
| import org.apache.qpid.proton.amqp.Binary; |
| |
| public class StringUtils |
| { |
| /** |
| * Converts the Binary to a quoted string. |
| * |
| * @param bin the Binary to convert |
| * @param stringLength the maximum length of stringified content (excluding the quotes, and truncated indicator) |
| * @param appendIfTruncated appends "...(truncated)" if not all of the payload is present in the string |
| * @return the converted string |
| */ |
| public static String toQuotedString(final Binary bin,final int stringLength,final boolean appendIfTruncated) |
| { |
| if(bin == null) |
| { |
| return "\"\""; |
| } |
| |
| final byte[] binData = bin.getArray(); |
| final int binLength = bin.getLength(); |
| final int offset = bin.getArrayOffset(); |
| |
| StringBuilder str = new StringBuilder(); |
| str.append("\""); |
| |
| int size = 0; |
| boolean truncated = false; |
| for (int i = 0; i < binLength; i++) |
| { |
| byte c = binData[offset + i]; |
| |
| if (c > 31 && c < 127 && c != '\\') |
| { |
| if (size + 1 <= stringLength) |
| { |
| size += 1; |
| str.append((char) c); |
| } |
| else |
| { |
| truncated = true; |
| break; |
| } |
| } |
| else |
| { |
| if (size + 4 <= stringLength) |
| { |
| size += 4; |
| str.append(String.format("\\x%02x", c)); |
| } |
| else |
| { |
| truncated = true; |
| break; |
| } |
| } |
| } |
| |
| str.append("\""); |
| |
| if (truncated && appendIfTruncated) |
| { |
| str.append("...(truncated)"); |
| } |
| |
| return str.toString(); |
| } |
| } |