org.apache.cocoon.components.source: abstract public class: AbstractSAXSource

org.apache.cocoon.components.source
abstract public class: AbstractSAXSource [javadoc | source]

java.lang.Object
   org.apache.cocoon.components.source.AbstractSAXSource

All Implemented Interfaces:
Source

Direct Known Subclasses:
XMLDBSource

Deprecated! Use - the new Avalon Excalibur Source Resolving

This abstract class provides convenience methods to implement a SAX based Source. Implement toSAX() and getSystemId() and optionally override getLastModified() and getContentLength() to obtain a valid Source implementation.

author: < - a href="mailto:gianugo@apache.org">Gianugo Rabellino

version: CVS - $Id: AbstractSAXSource.java 433543 2006-08-22 06:22:54Z crossley $

Field Summary
protected Logger	log	The Logger instance
protected ComponentManager	manager	The ComponentManager instance

Constructor:

Constructor:
public AbstractSAXSource(Environment environment, ComponentManager manager, Logger logger) { this.log = logger; this.manager = manager; } The constructor. Parameters: `environment` - the Cocoon Environment. `manager` - an Avalon Component Manager `logger` - A LogKit logger

 public AbstractSAXSource(Environment environment,
    ComponentManager manager,
    Logger logger) {
      this.log = logger;
      this.manager = manager;
}

The constructor.

Parameters:

environment - the Cocoon Environment.

manager - an Avalon Component Manager

logger - A LogKit logger

Method from org.apache.cocoon.components.source.AbstractSAXSource Summary:
getContentLength, getInputSource, getInputStream, getLastModified, getSystemId, toSAX

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.apache.cocoon.components.source.AbstractSAXSource Detail:
public long getContentLength() { return -1; } Deprecated! Override this method to set the Content Length
public InputSource getInputSource() throws IOException, ProcessingException { InputSource is = new InputSource(this.getInputStream()); is.setSystemId(this.getSystemId()); return is; } Deprecated! Get an InputSource for the given URL.
public InputStream getInputStream() throws IOException, ProcessingException { ComponentSelector serializerSelector = null; Serializer serializer = null; try { serializerSelector = (ComponentSelector) this.manager.lookup(Serializer.ROLE + "Selector"); serializer = (Serializer)serializerSelector.select("xml"); ByteArrayOutputStream os = new ByteArrayOutputStream(); serializer.setOutputStream(os); this.toSAX(serializer); return new ByteArrayInputStream(os.toByteArray()); } catch (ComponentException cme) { throw new ProcessingException("could not lookup pipeline components", cme); } catch (Exception e) { throw new ProcessingException("Exception during processing of " + this.getSystemId(), e); } finally { if (serializer != null) serializerSelector.release(serializer); if (serializerSelector != null) this.manager.release(serializerSelector); } } Deprecated! Get an InputSource for the given URL. Shamelessly stolen from SitemapSource.
public long getLastModified() { return 0; } Deprecated! Override this method to set the Last Modification date
abstract public String getSystemId() Deprecated! Implement this method to set the unique identifier.
abstract public void toSAX(ContentHandler handler) throws SAXException Deprecated! Implement this method to obtain SAX events.

Method from org.apache.cocoon.components.source.AbstractSAXSource Detail:

 public long getContentLength() {
      return -1;
}

Deprecated!

Override this method to set the Content Length

 public InputSource getInputSource() throws IOException, ProcessingException {
      InputSource is = new InputSource(this.getInputStream());
      is.setSystemId(this.getSystemId());
      return is;
}

Deprecated!

Get an InputSource for the given URL.

 public InputStream getInputStream() throws IOException, ProcessingException {
        ComponentSelector serializerSelector = null;
        Serializer serializer = null;
        try {
            serializerSelector = (ComponentSelector) this.manager.lookup(Serializer.ROLE + "Selector");
            serializer = (Serializer)serializerSelector.select("xml");
            ByteArrayOutputStream os = new ByteArrayOutputStream();
            serializer.setOutputStream(os);
            this.toSAX(serializer);
            return new ByteArrayInputStream(os.toByteArray());
        } catch (ComponentException cme) {
            throw new ProcessingException("could not lookup pipeline components", cme);
        } catch (Exception e) {
            throw new ProcessingException("Exception during processing of " + this.getSystemId(), e);
        } finally {
            if (serializer != null) serializerSelector.release(serializer);
            if (serializerSelector != null) this.manager.release(serializerSelector);
        }
}

Deprecated!

Get an InputSource for the given URL. Shamelessly stolen from SitemapSource.

 public long getLastModified() {
      return 0;
}

Deprecated!

Override this method to set the Last Modification date

 abstract public String getSystemId()       Deprecated!Implement this method to set the unique identifier.

 abstract public  void toSAX(ContentHandler handler) throws SAXException       Deprecated!Implement this method to obtain SAX events.