| /* |
| * 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.jmeter.control; |
| |
| import java.io.Serializable; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.jmeter.samplers.Sampler; |
| import org.apache.jmeter.testelement.TestElement; |
| import org.apache.jmeter.testelement.property.StringProperty; |
| |
| // For unit tests @see TestSwitchController |
| |
| /** |
| * <p> |
| * Implements a controller which selects at most one of its children |
| * based on the condition value, which may be a number or a string. |
| * </p> |
| * <p> |
| * For numeric input, the controller processes the appropriate child, |
| * where the numbering starts from 0. |
| * If the number is out of range, then the first (0th) child is selected. |
| * If the condition is the empty string, then it is assumed to be 0. |
| * </p> |
| * <p> |
| * For non-empty non-numeric input, the child is selected by name. |
| * This may be the name of the controller or a sampler. |
| * If the string does not match any of the names, then the controller |
| * with the name "default" (any case) is processed. |
| * If there is no default entry, then unlike the numeric case, |
| * no child is selected. |
| * </p> |
| */ |
| public class SwitchController extends GenericController implements Serializable { |
| private static final long serialVersionUID = 240L; |
| |
| // Package access for use by Test code |
| static final String SWITCH_VALUE = "SwitchController.value"; //$NON-NLS-1$ |
| |
| public SwitchController() { |
| super(); |
| } |
| |
| @Override |
| public Sampler next() { |
| if (isFirst()) { // Set the selection once per iteration |
| current = getSelectionAsInt(); |
| } |
| return super.next(); |
| } |
| |
| /** |
| * incrementCurrent is called when the current child (whether sampler or controller) |
| * has been processed. |
| * <p> |
| * Setting it to int.max marks the controller as having processed all its |
| * children. Thus the controller processes one child per iteration. |
| * <p> |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void incrementCurrent() { |
| current=Integer.MAX_VALUE; |
| } |
| |
| public void setSelection(String inputValue) { |
| setProperty(new StringProperty(SWITCH_VALUE, inputValue)); |
| } |
| |
| /** |
| * @return the selection value as a int with the value set to zero if it is out of range. |
| */ |
| private int getSelectionAsInt() { |
| getProperty(SWITCH_VALUE).recoverRunningVersion(null); |
| String sel = getSelection(); |
| if (StringUtils.isEmpty(sel)) { |
| return 0; |
| } else { |
| try { |
| if(StringUtils.isNumeric(sel)) { |
| int ret = Integer.parseInt(sel); |
| if (ret < 0 || ret >= getSubControllers().size()) { |
| // Out of range, we return first one |
| ret = 0; |
| } |
| return ret; |
| } |
| } catch (NumberFormatException e) { |
| // it will be handled by code below |
| } |
| return scanControllerNames(sel); |
| } |
| } |
| |
| /** |
| * @param sel controller name |
| * @return index of controller named sel if present, otherwise index of default if found, otherwise {@link Integer#MAX_VALUE} |
| */ |
| private int scanControllerNames(String sel) { |
| int i = 0; |
| int defaultPos = Integer.MAX_VALUE; |
| for (TestElement el : getSubControllers()) { |
| String name = el.getName(); |
| if (name.equals(sel)) { |
| return i; |
| } |
| if (name.equalsIgnoreCase("default")) { //$NON-NLS-1$ |
| defaultPos = i; |
| } |
| i++; |
| } |
| |
| return defaultPos; |
| } |
| |
| public String getSelection() { |
| return getPropertyAsString(SWITCH_VALUE); |
| } |
| } |