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package argos.metadata; |
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import java.io.Serializable; |
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import java.util.ArrayList; |
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import java.util.List; |
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import javax.management.NotificationListener; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.NodeList; |
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import argos.config.Config; |
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import argos.naming.NamingService; |
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public class ComponentMetaInfo extends Running implements Serializable { |
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public static final long serialVersionUID = 2807813948753460L; |
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private String className; |
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private NotificationListener listenerProxy; |
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private String mbeanName; |
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private ServiceMetaInfo service; |
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private List<AttributeValue> attributeValues; |
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private List<String> dependencies; |
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private List<String> listenTo; |
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private List<String> listenToRemote; |
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protected ComponentMetaInfo(ServiceMetaInfo service) { |
| 63 | 0 | super(); |
| 64 | 0 | this.service = service; |
| 65 | 0 | dependencies = new ArrayList<String>(); |
| 66 | 0 | attributeValues = new ArrayList<AttributeValue>(); |
| 67 | 0 | } |
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public ComponentMetaInfo(ServiceMetaInfo service, Element component) |
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throws InformationMissingException { |
| 71 | 0 | this(service); |
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|
| 73 | 0 | listenTo = new ArrayList<String>(); |
| 74 | 0 | listenToRemote = new ArrayList<String>(); |
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|
| 77 | 0 | name = component.getAttribute("name"); |
| 78 | 0 | if(name == null) { |
| 79 | 0 | throw new InformationMissingException("The component name is missing"); |
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} |
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|
| 83 | 0 | className = component.getAttribute("class"); |
| 84 | 0 | if(className == null) { |
| 85 | 0 | throw new InformationMissingException("The component class is missing"); |
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} |
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|
| 89 | 0 | NodeList elements = component.getElementsByTagName("attribute"); |
| 90 | 0 | for(int i = 0; i < elements.getLength(); i++) { |
| 91 | 0 | Element element = (Element) elements.item(i); |
| 92 | 0 | String nodeName = element.getAttribute("name"); |
| 93 | 0 | String value = element.getAttribute("value"); |
| 94 | 0 | if(nodeName == null) { |
| 95 | 0 | throw new InformationMissingException("Attribute tag is missing name" |
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+ " attribute"); |
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} |
| 98 | 0 | if(value == null) { |
| 99 | 0 | throw new InformationMissingException("Attribute tag is missing " |
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+ "value attribute"); |
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} |
| 102 | 0 | AttributeValue att = new AttributeValue(nodeName, value); |
| 103 | 0 | attributeValues.add(att); |
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String key; |
| 106 | 0 | if(this.name.startsWith(Config.BANG_BANG)) { |
| 107 | 0 | key = "BangBang." + this.name.substring(2) + "." + nodeName; |
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} |
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else { |
| 110 | 0 | key = this.name + "." + nodeName; |
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} |
| 112 | 0 | String value2 = Config.getInstance().lookup(key, false); |
| 113 | 0 | if(value2 == null) { |
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} |
| 116 | 0 | else if(!"".equals(value2)) { |
| 117 | 0 | att.setValue(value2); |
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} |
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} |
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|
| 122 | 0 | elements = component.getElementsByTagName("listen"); |
| 123 | 0 | for(int i = 0; i < elements.getLength(); i++) { |
| 124 | 0 | Element element = (Element) elements.item(i); |
| 125 | 0 | String to = element.getAttribute("to"); |
| 126 | 0 | String url = element.getAttribute("url"); |
| 127 | 0 | if(to == null) { |
| 128 | 0 | throw new InformationMissingException("Listen tag is missing to or url and component" |
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+ "attribute"); |
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} |
| 131 | 0 | if(url == null || url.equals("")) { |
| 132 | 0 | listenTo.add(to); |
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|
| 134 | 0 | if(!to.startsWith(Config.BANG_BANG) && !dependencies.contains(to)) { |
| 135 | 0 | dependencies.add(to); |
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} |
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} |
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else { |
| 139 | 0 | listenToRemote.add(url); |
| 140 | 0 | listenToRemote.add("Components:name=" + to); |
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} |
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} |
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|
| 145 | 0 | elements = component.getElementsByTagName("depend"); |
| 146 | 0 | for(int i = 0; i < elements.getLength(); i++) { |
| 147 | 0 | Element element = (Element) elements.item(i); |
| 148 | 0 | String on = element.getAttribute("on"); |
| 149 | 0 | if(on == null) { |
| 150 | 0 | throw new InformationMissingException("Dependency tag is missing on attribute"); |
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} |
| 152 | 0 | dependencies.add(on); |
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} |
| 154 | 0 | } |
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|
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public void setupDependencies(List<ServiceMetaInfo> services) throws DependencyMissingException { |
| 157 | 0 | for(String tempName : dependencies) { |
| 158 | 0 | boolean found = false; |
| 159 | 0 | for(ServiceMetaInfo temp : services) { |
| 160 | 0 | for(ComponentMetaInfo meta : temp.getComponentMetaInfo()) { |
| 161 | 0 | if(meta.getName().equals(tempName)) { |
| 162 | 0 | thisDependsOn.add(meta); |
| 163 | 0 | meta.dependsOnThis.add(this); |
| 164 | 0 | found = true; |
| 165 | 0 | break; |
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} |
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} |
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} |
| 169 | 0 | if(!found) { |
| 170 | 0 | ComponentMetaInfo meta = NamingService.getInstance().getComponentMetaByName(name, false); |
| 171 | 0 | if(meta == null) { |
| 172 | 0 | throw new DependencyMissingException("missing dependency " + name + "."); |
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} |
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} |
| 175 | 0 | } |
| 176 | 0 | } |
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|
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public String getClassName() { |
| 179 | 0 | return className; |
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} |
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|
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public List<AttributeValue> getAttributeValues() { |
| 183 | 0 | List<AttributeValue> list = new ArrayList<AttributeValue>(); |
| 184 | 0 | for(AttributeValue temp : attributeValues) { |
| 185 | 0 | list.add(temp); |
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} |
| 187 | 0 | return list; |
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} |
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public void addAttributeValue(AttributeValue value) { |
| 191 | 0 | attributeValues.add(value); |
| 192 | 0 | } |
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|
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public void addListenTo(String component) { |
| 195 | 0 | listenTo.add(component); |
| 196 | 0 | } |
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|
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public List<String> getListenTo() { |
| 199 | 0 | List<String> list = new ArrayList<String>(); |
| 200 | 0 | for(String temp : listenTo) { |
| 201 | 0 | list.add(temp); |
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} |
| 203 | 0 | return list; |
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} |
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public List<String> getListenToRemote() { |
| 207 | 0 | List<String> list = new ArrayList<String>(); |
| 208 | 0 | for(String temp : listenToRemote) { |
| 209 | 0 | list.add(temp); |
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} |
| 211 | 0 | return list; |
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} |
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|
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public ServiceMetaInfo getService() { |
| 215 | 0 | return service; |
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} |
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public NotificationListener getListenerProxy() { |
| 219 | 0 | return listenerProxy; |
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} |
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public void setListenerProxy(NotificationListener listenerProxy) { |
| 223 | 0 | this.listenerProxy = listenerProxy; |
| 224 | 0 | } |
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public String getMbeanName() { |
| 227 | 0 | return mbeanName; |
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} |
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public void setMbeanName(String mbeanName) { |
| 231 | 0 | this.mbeanName = mbeanName; |
| 232 | 0 | } |
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|
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@Override |
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public String toString() { |
| 236 | 0 | return getName(); |
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} |
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|
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@Override |
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public boolean equals(Object o) { |
| 241 | 0 | if(o instanceof ComponentMetaInfo) { |
| 242 | 0 | ComponentMetaInfo comp = (ComponentMetaInfo) o; |
| 243 | 0 | return comp.hashCode() == hashCode(); |
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} |
| 245 | 0 | return false; |
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} |
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|
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@Override |
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public int hashCode() { |
| 250 | 0 | return (service.getName() + name).hashCode(); |
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} |
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} |