| /* |
| * 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.myfaces.test.mock; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.faces.application.Application; |
| import javax.faces.component.StateHolder; |
| import javax.faces.context.ExternalContext; |
| import javax.faces.context.FacesContext; |
| import javax.faces.el.EvaluationException; |
| import javax.faces.el.PropertyNotFoundException; |
| import javax.faces.el.PropertyResolver; |
| import javax.faces.el.ReferenceSyntaxException; |
| import javax.faces.el.ValueBinding; |
| import javax.faces.el.VariableResolver; |
| |
| |
| /** |
| * <p>Mock implementation of <code>ValueBinding</code>.</p> |
| */ |
| |
| public class MockValueBinding extends ValueBinding implements StateHolder { |
| |
| |
| // ------------------------------------------------------------ Constructors |
| |
| |
| /** |
| * <p>Construct a default instance.</p> |
| */ |
| public MockValueBinding() { |
| |
| this(null, null); |
| |
| } |
| |
| |
| /** |
| * <p>Construct a new value binding for the specified expression.</p> |
| * |
| * @param application Application instance to be wrapped |
| * @param ref Expression to be wrapped |
| */ |
| public MockValueBinding(Application application, String ref) { |
| |
| this.application = application; |
| if (ref != null) { |
| if (ref.startsWith("#{") && ref.endsWith("}")) { |
| ref = ref.substring(2, ref.length() - 1); |
| } |
| } |
| this.ref = ref; |
| |
| } |
| |
| |
| // ----------------------------------------------------- Mock Object Methods |
| |
| |
| /** |
| * <p>Return the expression string for this value binding.</p> |
| */ |
| public String ref() { |
| |
| return this.ref; |
| |
| } |
| |
| |
| // ------------------------------------------------------ Instance Variables |
| |
| |
| /** |
| * <p>The <code>Application</code> instance for this application.</p> |
| */ |
| private transient Application application; // Restored as necessary |
| |
| |
| /** |
| * <p>The expression this value binding will evaluate.</p> |
| */ |
| private String ref; |
| |
| |
| // ---------------------------------------------------- ValueBinding Methods |
| |
| |
| /** {@inheritDoc} */ |
| public Object getValue(FacesContext context) |
| throws EvaluationException, PropertyNotFoundException { |
| |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| List names = parse(ref); |
| |
| // Resolve the variable name |
| VariableResolver vr = application().getVariableResolver(); |
| String name = (String) names.get(0); |
| Object base = vr.resolveVariable(context, name); |
| if (names.size() < 2) { |
| return (base); |
| } |
| |
| // Resolve the property names |
| PropertyResolver pr = application().getPropertyResolver(); |
| for (int i = 1; i < names.size(); i++) { |
| base = pr.getValue(base, (String) names.get(i)); |
| } |
| |
| // Return the resolved value |
| return (base); |
| |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public void setValue(FacesContext context, Object value) |
| throws EvaluationException, PropertyNotFoundException { |
| |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| List names = parse(ref); |
| |
| // Resolve the variable name |
| VariableResolver vr = application().getVariableResolver(); |
| String name = (String) names.get(0); |
| Object base = vr.resolveVariable(context, name); |
| if (names.size() < 2) { |
| if ("applicationScope".equals(name) |
| || "requestScope".equals(name) |
| || "sessionScope".equals(name)) { |
| throw new ReferenceSyntaxException("Cannot set '" |
| + name + "'"); |
| } |
| Map map = econtext().getRequestMap(); |
| if (map.containsKey(name)) { |
| map.put(name, value); |
| return; |
| } |
| map = econtext().getSessionMap(); |
| if ((map != null) && (map.containsKey(name))) { |
| map.put(name, value); |
| return; |
| } |
| map = econtext().getApplicationMap(); |
| if (map.containsKey(name)) { |
| map.put(name, value); |
| return; |
| } |
| econtext().getRequestMap().put(name, value); |
| return; |
| } |
| |
| // Resolve the property names |
| PropertyResolver pr = application().getPropertyResolver(); |
| for (int i = 1; i < (names.size() - 1); i++) { |
| // System.out.println(" property=" + names.get(i)); |
| base = pr.getValue(base, (String) names.get(i)); |
| } |
| |
| // Update the last property |
| pr.setValue(base, (String) names.get(names.size() - 1), value); |
| |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public boolean isReadOnly(FacesContext context) |
| throws PropertyNotFoundException { |
| |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| List names = parse(ref); |
| |
| // Resolve the variable name |
| VariableResolver vr = application().getVariableResolver(); |
| String name = (String) names.get(0); |
| Object base = vr.resolveVariable(context, name); |
| if (names.size() < 2) { |
| return true; |
| } |
| |
| // Resolve the property names |
| PropertyResolver pr = application().getPropertyResolver(); |
| for (int i = 1; i < names.size() - 1; i++) { |
| base = pr.getValue(base, (String) names.get(i)); |
| } |
| |
| // Return the read only state of the final property |
| return pr.isReadOnly(base, (String) names.get(names.size() - 1)); |
| |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public Class getType(FacesContext context) |
| throws PropertyNotFoundException { |
| |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| List names = parse(ref); |
| |
| // Resolve the variable name |
| VariableResolver vr = application().getVariableResolver(); |
| String name = (String) names.get(0); |
| Object base = vr.resolveVariable(context, name); |
| if (names.size() < 2) { |
| return base.getClass(); |
| } |
| |
| // Resolve the property names |
| PropertyResolver pr = application().getPropertyResolver(); |
| for (int i = 1; i < names.size() - 1; i++) { |
| base = pr.getValue(base, (String) names.get(i)); |
| } |
| |
| // Return the type of the final property |
| return pr.getType(base, (String) names.get(names.size() - 1)); |
| |
| } |
| |
| /** {@inheritDoc} */ |
| public String getExpressionString() { |
| |
| return "#{" + ref + "}"; |
| |
| } |
| |
| |
| // ----------------------------------------------------- StateHolder Methods |
| |
| |
| /** {@inheritDoc} */ |
| public Object saveState(FacesContext context) { |
| |
| Object[] values = new Object[1]; |
| values[0] = ref; |
| return values; |
| |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public void restoreState(FacesContext context, Object state) { |
| |
| Object[] values = (Object[]) state; |
| ref = (String) values[0]; |
| |
| } |
| |
| |
| /** |
| * <p>Flag indicating that this value is transient.</p> |
| */ |
| private boolean transientFlag = false; |
| |
| |
| /** {@inheritDoc} */ |
| public boolean isTransient() { |
| |
| return this.transientFlag; |
| |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public void setTransient(boolean transientFlag) { |
| |
| this.transientFlag = transientFlag; |
| |
| } |
| |
| |
| // --------------------------------------------------------- Private Methods |
| |
| |
| /** |
| * <p>Return the relevant <code>Application</code> instance.</p> |
| */ |
| private Application application() { |
| |
| if (application == null) { |
| application = FacesContext.getCurrentInstance().getApplication(); |
| } |
| return (application); |
| |
| } |
| |
| |
| /** |
| * <p>Return the relevant <code>ExternalContext</code> instance.</p> |
| */ |
| private ExternalContext econtext() { |
| |
| return (FacesContext.getCurrentInstance().getExternalContext()); |
| |
| } |
| |
| |
| /** |
| * <p>Return a list of the expression elements in this expression.</p> |
| * |
| * @param ref Expression to be parsed |
| */ |
| private List parse(String ref) { |
| |
| List names = new ArrayList(); |
| StringBuffer expr = new StringBuffer(ref); |
| boolean isBlockOn = false; |
| for (int i = expr.length() - 1; i > -1; i--) { |
| if (expr.charAt(i) == ' ') { |
| expr.deleteCharAt(i); |
| } else if (expr.charAt(i) == ']') { |
| expr.deleteCharAt(i); |
| } else if (expr.charAt(i) == '[') { |
| expr.deleteCharAt(i); |
| } else if (expr.charAt(i) == '\'') { |
| if (!isBlockOn) { |
| expr.deleteCharAt(i); |
| } else { |
| names.add(0, expr.substring(i + 1)); |
| expr.delete(i, expr.length()); |
| } |
| isBlockOn = !isBlockOn; |
| } else if (expr.charAt(i) == '.' && !isBlockOn) { |
| names.add(0, expr.substring(i + 1)); |
| expr.delete(i, expr.length()); |
| } |
| } |
| |
| if (expr.length() > 0) { |
| names.add(0, expr.toString()); |
| } |
| |
| if (names.size() < 1) { |
| throw new ReferenceSyntaxException("No expression in '" |
| + ref + "'"); |
| } |
| for (int i = 0; i < names.size(); i++) { |
| String name = (String) names.get(i); |
| if (name.length() < 1) { |
| throw new ReferenceSyntaxException("Invalid expression '" |
| + ref + "'"); |
| } |
| } |
| return (names); |
| |
| } |
| |
| |
| } |