| // *************************************************************************************************************************** |
| // * 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.juneau.http.part; |
| |
| import static org.apache.juneau.assertions.Assertions.*; |
| |
| import java.util.NoSuchElementException; |
| |
| import org.apache.http.*; |
| import org.apache.juneau.annotation.*; |
| import org.apache.juneau.internal.*; |
| |
| /** |
| * Basic implementation of a {@link PartIterator}. |
| * |
| * {@review} |
| */ |
| @NotThreadSafe |
| public class BasicPartIterator implements PartIterator { |
| |
| private final NameValuePair[] entries; |
| private final String name; |
| private final boolean caseInsensitive; |
| |
| private int currentIndex; |
| |
| /** |
| * Creates a new part iterator. |
| * |
| * @param parts An array of parts over which to iterate. |
| * @param name The name of the parts over which to iterate, or <jk>null</jk> for all. |
| * @param caseInsensitive Use case-insensitive matching for part name. |
| */ |
| public BasicPartIterator(NameValuePair[] parts, String name, boolean caseInsensitive) { |
| this.entries = assertArgNotNull("parts", parts); |
| this.name = name; |
| this.caseInsensitive = caseInsensitive; |
| this.currentIndex = findNext(-1); |
| } |
| |
| private int findNext(int pos) { |
| |
| int from = pos; |
| |
| int to = entries.length - 1; |
| boolean found = false; |
| while (!found && (from < to)) { |
| from++; |
| found = filter(from); |
| } |
| |
| return found ? from : -1; |
| } |
| |
| private boolean filter(int index) { |
| return (name == null) || eq(name, entries[index].getName()); |
| } |
| |
| @Override /* Iterator */ |
| public boolean hasNext() { |
| return (currentIndex >= 0); |
| } |
| |
| @Override /* Iterator */ |
| public NameValuePair next() throws NoSuchElementException { |
| |
| int current = currentIndex; |
| |
| if (current < 0) |
| throw new NoSuchElementException("Iteration already finished."); |
| |
| currentIndex = findNext(current); |
| |
| return entries[current]; |
| } |
| |
| /** |
| * Not supported. |
| */ |
| @Override /* Iterator */ |
| public void remove() throws UnsupportedOperationException { |
| throw new UnsupportedOperationException("Remove is not supported."); |
| } |
| |
| private boolean eq(String s1, String s2) { |
| return StringUtils.eq(caseInsensitive, s1, s2); |
| } |
| } |