| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| SessionContext |
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| 1.75;1.75 |
| 1 | /* |
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| 2 | * |
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| 3 | * Copyright 2005 The Apache Software Foundation. |
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| 4 | * |
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| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 6 | * you may not use this file except in compliance with the License. |
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| 7 | * You may obtain a copy of the License at |
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| 8 | * |
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 10 | * |
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| 11 | * Unless required by applicable law or agreed to in writing, software |
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 14 | * See the License for the specific language governing permissions and |
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| 15 | * limitations under the License. |
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| 16 | * |
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| 17 | */ |
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| 18 | package org.apache.commons.scxml.env.faces; |
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| 19 | ||
| 20 | import java.util.Map; |
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| 21 | ||
| 22 | import javax.faces.context.FacesContext; |
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| 23 | ||
| 24 | import org.apache.commons.scxml.Context; |
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| 25 | import org.apache.commons.scxml.env.SimpleContext; |
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| 26 | ||
| 27 | /** |
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| 28 | * <p>A Faces Session Context.</p> |
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| 29 | * |
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| 30 | * <p>Since the "session map" is obtained from a |
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| 31 | * <code>FacesContext</code> object using the environment agnostic |
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| 32 | * <code>getExternalContext()</code>, this <code>Context</code> |
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| 33 | * will be useful in Servlet as well as Portlet environments.</p> |
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| 34 | * |
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| 35 | */ |
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| 36 | public class SessionContext extends SimpleContext { |
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| 37 | ||
| 38 | /** The map of session scoped variables. */ |
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| 39 | private Map sessionMap; |
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| 40 | /** Bark if FacesContext is null. */ |
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| 41 | private static final String ERR_HOST_FACES_CTX_NULL = |
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| 42 | "Host FacesContext cannot be null"; |
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| 43 | ||
| 44 | /** |
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| 45 | * Constructor. |
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| 46 | * |
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| 47 | * @param fc The current FacesContext |
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| 48 | */ |
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| 49 | public SessionContext(final FacesContext fc) { |
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| 50 | 1 | this(fc, null); |
| 51 | 0 | } |
| 52 | ||
| 53 | /** |
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| 54 | * Constructor. |
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| 55 | * |
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| 56 | * @param fc The current FacesContext |
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| 57 | * @param parent A parent Context, can be null |
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| 58 | */ |
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| 59 | public SessionContext(final FacesContext fc, final Context parent) { |
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| 60 | 1 | super(parent); |
| 61 | 1 | if (fc == null) { |
| 62 | 1 | throw new IllegalArgumentException(ERR_HOST_FACES_CTX_NULL); |
| 63 | } else { |
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| 64 | // only retain the session map |
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| 65 | 0 | this.sessionMap = fc.getExternalContext().getSessionMap(); |
| 66 | } |
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| 67 | ||
| 68 | 0 | } |
| 69 | ||
| 70 | /** |
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| 71 | * Get the value of the given variable in this Context. |
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| 72 | * |
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| 73 | * @param name The name of the variable |
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| 74 | * @return The value (or null) |
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| 75 | * @see org.apache.commons.scxml.Context#get(java.lang.String) |
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| 76 | */ |
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| 77 | public Object get(final String name) { |
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| 78 | 0 | Object value = getVars().get(name); |
| 79 | 0 | if (value == null) { |
| 80 | 0 | value = sessionMap.get(name); |
| 81 | } |
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| 82 | 0 | return value; |
| 83 | } |
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| 84 | ||
| 85 | /** |
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| 86 | * Does the given variable exist in this Context. |
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| 87 | * |
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| 88 | * @param name The name of the variable |
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| 89 | * @return boolean true if the variable exists |
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| 90 | * @see org.apache.commons.scxml.Context#has(java.lang.String) |
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| 91 | */ |
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| 92 | public boolean has(final String name) { |
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| 93 | 0 | return (sessionMap.containsKey(name) || getVars().containsKey(name)); |
| 94 | } |
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| 95 | ||
| 96 | } |
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| 97 |