| /* |
| * 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.commons.lang3.builder; |
| |
| import java.util.Collection; |
| |
| import org.apache.commons.lang3.ClassUtils; |
| |
| /** |
| * <p>Works with {@link ToStringBuilder} to create a "deep" {@code toString}.</p> |
| * |
| * <p>To use this class write code as follows:</p> |
| * |
| * <pre> |
| * public class Job { |
| * String title; |
| * ... |
| * } |
| * |
| * public class Person { |
| * String name; |
| * int age; |
| * boolean smoker; |
| * Job job; |
| * |
| * ... |
| * |
| * public String toString() { |
| * return new ReflectionToStringBuilder(this, new RecursiveToStringStyle()).toString(); |
| * } |
| * } |
| * </pre> |
| * |
| * <p>This will produce a toString of the format: |
| * {@code Person@7f54[name=Stephen,age=29,smoker=false,job=Job@43cd2[title=Manager]]}</p> |
| * |
| * @since 3.2 |
| */ |
| public class RecursiveToStringStyle extends ToStringStyle { |
| |
| /** |
| * Required for serialization support. |
| * |
| * @see java.io.Serializable |
| */ |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * <p>Constructor.</p> |
| */ |
| public RecursiveToStringStyle() { |
| super(); |
| } |
| |
| @Override |
| public void appendDetail(final StringBuffer buffer, final String fieldName, final Object value) { |
| if (!ClassUtils.isPrimitiveWrapper(value.getClass()) && |
| !String.class.equals(value.getClass()) && |
| accept(value.getClass())) { |
| buffer.append(ReflectionToStringBuilder.toString(value, this)); |
| } else { |
| super.appendDetail(buffer, fieldName, value); |
| } |
| } |
| |
| @Override |
| protected void appendDetail(final StringBuffer buffer, final String fieldName, final Collection<?> coll) { |
| appendClassName(buffer, coll); |
| appendIdentityHashCode(buffer, coll); |
| appendDetail(buffer, fieldName, coll.toArray()); |
| } |
| |
| /** |
| * Returns whether or not to recursively format the given {@code Class}. |
| * By default, this method always returns {@code true}, but may be overwritten by |
| * sub-classes to filter specific classes. |
| * |
| * @param clazz |
| * The class to test. |
| * @return Whether or not to recursively format the given {@code Class}. |
| */ |
| protected boolean accept(final Class<?> clazz) { |
| return true; |
| } |
| } |