Examples of org.apache.excalibur.source.SourceValidity

org.apache.excalibur.source.SourceValidity
A SourceValidity object contains all information to check if a Source object is still valid.
There are two possibilities:
- The validity object has all information to check by itself if it is valid (e.g. given an expires date).
- The validity object possibility needs another (newer) validity object to compare against (e.g. to test a last modification date).
To avoid testing what the actual implementation of the validity object supports, the invocation order is to first call {@link #isValid()} and only if this resultis 0 (i.e. "don't know"), then to call {@link #isValid(SourceValidity)}.
Remember to call {@link #isValid(SourceValidity)} when {@link #isValid()} returned0 ! @author Avalon Development Team @version CVS $Revision: 1.4 $ $Date: 2004/02/28 11:47:26 $

        // Source exists
        Object[] values = (Object[])this.mountTables.get(uri);
        
        if (values != null) {
            // Check validity
            SourceValidity oldValidity = (SourceValidity)values[1];
            int valid = oldValidity.isValid();
            if (valid == 1) {
                // Valid without needing the new validity
                return (Map)values[0];
            }
            
            if (valid == 0 && oldValidity.isValid(source.getValidity()) == 1) {
                // Valid after comparing with the new validity
                return (Map)values[0];
            }
            
            // Invalid: fallback below to read the mount table

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                    int valid = SourceValidity.UNKNOWN;
                    if (startEvent.compileTime != null) {
                        valid = startEvent.compileTime.isValid();
                    }
                    if (valid == SourceValidity.UNKNOWN && startEvent.compileTime != null) {
                        SourceValidity validity = inputSource.getValidity();
                        valid = startEvent.compileTime.isValid(validity);
                    }
                    if (valid != SourceValidity.VALID) {
                        cache.remove(uri);
                    }

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                }
                Source input = null;
                StartDocument doc;
                try {
                    input = resolver.resolveURI(uri);
                    SourceValidity validity = null;
                    synchronized (cache) {
                        doc = (StartDocument)cache.get(input.getURI());
                        if (doc != null) {
                            boolean recompile = false;
                            if ( doc.compileTime == null) {

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            Iterator iter = javaSource.entrySet().iterator();
            List invalid = new LinkedList();
            while (iter.hasNext()) {
                Map.Entry e = (Map.Entry)iter.next();
                String uri = (String)e.getKey();
                SourceValidity validity =
                    (SourceValidity)e.getValue();
                int valid = validity.isValid();
                if (valid == SourceValidity.UNKNOWN) {
                    Source newSrc = null;
                    try {
                        newSrc = sourceResolver.resolveURI(uri);
                        valid = newSrc.getValidity().isValid(validity);

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        Source source = null;
        SourceResolver resolver = null;
        try {
            resolver = (SourceResolver)manager.lookup(SourceResolver.ROLE);
            source = resolver.resolveURI(sourceURL);
            SourceValidity sourceValidity = source.getValidity();
            if (validity == null || validity.isValid( sourceValidity ) == SourceValidity.INVALID) {
                HashMap values = new HashMap();
                SourceUtil.toSAX(source, new SAXContentHandler(values));
                this.validity = sourceValidity;
                this.values = values;

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        public synchronized Document getDocument(ComponentManager manager, 
                                                 SourceResolver resolver, 
                                                 Logger logger) throws Exception {


            Source src = null;
            SourceValidity valid = null;
            Document dom = null;


            if (this.document == null) {
                if (logger.isDebugEnabled())
                    logger.debug("document not cached... reloading uri "+this.uri);

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                // FIXME - disabled saving for testing
                // adapter.saveProfile(key, result[0]);


        // set validity for created user profile
        SourceValidity newValidity = adapter.getValidity(key);
        if (newValidity != null) {
          Object[] objects = new Object[] { result[0], newValidity };
          service.setAttribute(SimpleProfileManager.class.getName()+location+"-user-"+map.get("user"), objects);
        } else {
                    Object[] objects = new Object[] { result[0], null };

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      adapter = (MapSourceAdapter) this.manager.lookup(MapSourceAdapter.ROLE);


      Object[] objects = (Object[]) service.getAttribute(SimpleProfileManager.class.getName() + location);
      
      // check whether still valid
      SourceValidity sourceValidity = null;
      if (objects != null)
        sourceValidity = (SourceValidity)objects[1];
      Object[] validity = this.getValidity(key, location, sourceValidity, adapter);
      if (((Boolean)validity[0]).booleanValue()) {
        if (objects == null) {
          return new Object[]{null, Boolean.FALSE};
        } else {
          return new Object[]{objects[0], Boolean.FALSE};
        }
      }
      
      // load profile
      SourceValidity newValidity = (SourceValidity)validity[1];
      Object object = adapter.loadProfile(key);
      if (newValidity != null) {
        objects = new Object[] { object, newValidity };
        service.setAttribute(SimpleProfileManager.class.getName() + location, objects);
      }

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          return new Object[]{objects[0], Boolean.FALSE};
        }
      }


      // load profile
      SourceValidity newValidity = (SourceValidity)validity[1];
      Object object = adapter.loadProfile(key);
      if (newValidity != null) {
        objects = new Object[] { object, newValidity };
        service.setAttribute(SimpleProfileManager.class.getName() + location, objects);
      }

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    MapSourceAdapter adapter = null;
    try {
      adapter = (MapSourceAdapter) this.manager.lookup(MapSourceAdapter.ROLE);


      Object[] objects = (Object[]) service.getAttribute(SimpleProfileManager.class.getName() + location);
      SourceValidity sourceValidity = null;
      if (objects != null)
        sourceValidity = (SourceValidity)objects[1];
      
      return this.getValidity(key, location, sourceValidity, adapter);
    } finally {

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