From: jprocter Date: Fri, 29 Oct 2010 16:10:06 +0000 (+0000) Subject: parallelised service endpoint discovery and ensured that old threads are destroyed... X-Git-Tag: Release_2_6_1~17 X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=645c8f4779807289ff048de3c5d4149f6abc90de;p=jalview.git parallelised service endpoint discovery and ensured that old threads are destroyed before new discovery takes place (JAL-692) --- diff --git a/src/jalview/gui/Desktop.java b/src/jalview/gui/Desktop.java index ec9974c..6228afb 100755 --- a/src/jalview/gui/Desktop.java +++ b/src/jalview/gui/Desktop.java @@ -25,7 +25,6 @@ import java.awt.*; import java.awt.datatransfer.*; import java.awt.dnd.*; import java.awt.event.*; -import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; @@ -53,77 +52,11 @@ public class Desktop extends jalview.jbgui.GDesktop implements DropTargetListener, ClipboardOwner, IProgressIndicator { - private class JalviewChangeSupport implements PropertyChangeListener - { - public void propertyChange(PropertyChangeEvent evt) - { - // Handle change events - most are simply routed to other sources - changeSupport.firePropertyChange(evt); - } - - /** - * change listeners are notified of changes to resources so they can update - * their state. E.g. - the 'services' property notifies when the available - * set of web service endpoints have changed. - */ - private java.beans.PropertyChangeSupport changeSupport = new java.beans.PropertyChangeSupport( - this); - - /** - * @param propertyName - * @param listener - * @see java.beans.PropertyChangeSupport#addPropertyChangeListener(java.lang.String, - * java.beans.PropertyChangeListener) - */ - public void addJalviewPropertyChangeListener(String propertyName, - PropertyChangeListener listener) - { - changeSupport.addPropertyChangeListener(propertyName, listener); - } - - /** - * @param listener - * @see java.beans.PropertyChangeSupport#addPropertyChangeListener(java.beans.PropertyChangeListener) - */ - public void addJalviewPropertyChangeListener( - PropertyChangeListener listener) - { - changeSupport.addPropertyChangeListener(listener); - } - - /* - * @param propertyName - * - * @param oldValue - * - * @param newValue - * - * @see - * java.beans.PropertyChangeSupport#firePropertyChange(java.lang.String, - * java.lang.Object, java.lang.Object) public void firePropertyChange(String - * propertyName, Object oldValue, Object newValue) { - * changeSupport.firePropertyChange(propertyName, oldValue, newValue); } - */ - - /** - * @param propertyName - * @param listener - * @see java.beans.PropertyChangeSupport#removePropertyChangeListener(java.lang.String, - * java.beans.PropertyChangeListener) - */ - public void removeJalviewPropertyChangeListener(String propertyName, - PropertyChangeListener listener) - { - changeSupport.removePropertyChangeListener(propertyName, listener); - } - - } - private JalviewChangeSupport changeSupport = new JalviewChangeSupport(); /** * @param listener - * @see jalview.gui.Desktop.JalviewChangeSupport#addJalviewPropertyChangeListener(java.beans.PropertyChangeListener) + * @see jalview.gui.JalviewChangeSupport#addJalviewPropertyChangeListener(java.beans.PropertyChangeListener) */ public void addJalviewPropertyChangeListener( PropertyChangeListener listener) @@ -134,7 +67,7 @@ public class Desktop extends jalview.jbgui.GDesktop implements /** * @param propertyName * @param listener - * @see jalview.gui.Desktop.JalviewChangeSupport#addJalviewPropertyChangeListener(java.lang.String, + * @see jalview.gui.JalviewChangeSupport#addJalviewPropertyChangeListener(java.lang.String, * java.beans.PropertyChangeListener) */ public void addJalviewPropertyChangeListener(String propertyName, @@ -146,7 +79,7 @@ public class Desktop extends jalview.jbgui.GDesktop implements /** * @param propertyName * @param listener - * @see jalview.gui.Desktop.JalviewChangeSupport#removeJalviewPropertyChangeListener(java.lang.String, + * @see jalview.gui.JalviewChangeSupport#removeJalviewPropertyChangeListener(java.lang.String, * java.beans.PropertyChangeListener) */ public void removeJalviewPropertyChangeListener(String propertyName, @@ -2199,10 +2132,11 @@ public class Desktop extends jalview.jbgui.GDesktop implements } if (Cache.getDefault("SHOW_JWS2_SERVICES", true)) { - jalview.ws.jws2.Jws2Discoverer.getDiscoverer() - .addPropertyChangeListener(changeSupport); - (t2 = new Thread(jalview.ws.jws2.Jws2Discoverer.getDiscoverer())) - .start(); + if (jalview.ws.jws2.Jws2Discoverer.getDiscoverer().isRunning()) { + jalview.ws.jws2.Jws2Discoverer.getDiscoverer().setAborted(true); + } + t2=jalview.ws.jws2.Jws2Discoverer.getDiscoverer().startDiscoverer(changeSupport); + } if (blocking) { diff --git a/src/jalview/gui/JalviewChangeSupport.java b/src/jalview/gui/JalviewChangeSupport.java new file mode 100644 index 0000000..371beac --- /dev/null +++ b/src/jalview/gui/JalviewChangeSupport.java @@ -0,0 +1,70 @@ +package jalview.gui; + +import java.beans.PropertyChangeEvent; +import java.beans.PropertyChangeListener; + +public class JalviewChangeSupport implements PropertyChangeListener +{ + public void propertyChange(PropertyChangeEvent evt) + { + // Handle change events - most are simply routed to other sources + changeSupport.firePropertyChange(evt); + } + + /** + * change listeners are notified of changes to resources so they can update + * their state. E.g. - the 'services' property notifies when the available + * set of web service endpoints have changed. + */ + private java.beans.PropertyChangeSupport changeSupport = new java.beans.PropertyChangeSupport( + this); + + /** + * @param propertyName + * @param listener + * @see java.beans.PropertyChangeSupport#addPropertyChangeListener(java.lang.String, + * java.beans.PropertyChangeListener) + */ + public void addJalviewPropertyChangeListener(String propertyName, + PropertyChangeListener listener) + { + changeSupport.addPropertyChangeListener(propertyName, listener); + } + + /** + * @param listener + * @see java.beans.PropertyChangeSupport#addPropertyChangeListener(java.beans.PropertyChangeListener) + */ + public void addJalviewPropertyChangeListener( + PropertyChangeListener listener) + { + changeSupport.addPropertyChangeListener(listener); + } + + /* + * @param propertyName + * + * @param oldValue + * + * @param newValue + * + * @see + * java.beans.PropertyChangeSupport#firePropertyChange(java.lang.String, + * java.lang.Object, java.lang.Object) public void firePropertyChange(String + * propertyName, Object oldValue, Object newValue) { + * changeSupport.firePropertyChange(propertyName, oldValue, newValue); } + */ + + /** + * @param propertyName + * @param listener + * @see java.beans.PropertyChangeSupport#removePropertyChangeListener(java.lang.String, + * java.beans.PropertyChangeListener) + */ + public void removeJalviewPropertyChangeListener(String propertyName, + PropertyChangeListener listener) + { + changeSupport.removePropertyChangeListener(propertyName, listener); + } + +} \ No newline at end of file diff --git a/src/jalview/ws/jws2/JabaWsServerQuery.java b/src/jalview/ws/jws2/JabaWsServerQuery.java new file mode 100644 index 0000000..5ca5065 --- /dev/null +++ b/src/jalview/ws/jws2/JabaWsServerQuery.java @@ -0,0 +1,101 @@ +/** + * + */ +package jalview.ws.jws2; + +import jalview.bin.Cache; + +import compbio.data.msa.MsaWS; +import compbio.ws.client.Jws2Client; +import compbio.ws.client.Services; + +/** + * @author JimP + * + */ +public class JabaWsServerQuery implements Runnable +{ + + Jws2Discoverer jws2Discoverer=null; + String jwsservers=null; + boolean quit=false, + running=false; + /** + * @return the running + */ + public boolean isRunning() + { + return running; + } + + /** + * @param quit the quit to set + */ + public void setQuit(boolean quit) + { + this.quit = quit; + } + + public JabaWsServerQuery(Jws2Discoverer jws2Discoverer, String jwsservers) + { + this.jws2Discoverer = jws2Discoverer; + this.jwsservers=jwsservers; + } + + /* (non-Javadoc) + * @see java.lang.Runnable#run() + */ + @Override + public void run() + { + running=true; + try + { + if (Jws2Client.validURL(jwsservers)) + { + // look for services + for (Services srv : Services.values()) + { + if (quit) + { + running=false; + return; + } + MsaWS service = null; + try + { + service = Jws2Client.connect(jwsservers, srv); + } catch (Exception e) + { + System.err.println("Jws2 Discoverer: Problem on " + + jwsservers + " with service " + srv + ":\n" + + e.getMessage()); + if (!(e instanceof javax.xml.ws.WebServiceException)) + { + e.printStackTrace(); + } + } + ; + if (service != null) + { + jws2Discoverer.addService(jwsservers, srv, service); + } + } + + } + else + { + Cache.log.info("Ignoring invalid Jws2 service url " + jwsservers); + } + } catch (Exception e) + { + e.printStackTrace(); + Cache.log.warn("Exception when discovering Jws2 services.", e); + } catch (Error e) + { + Cache.log.error("Exception when discovering Jws2 services.", e); + } + running=false; + } + +} diff --git a/src/jalview/ws/jws2/Jws2Discoverer.java b/src/jalview/ws/jws2/Jws2Discoverer.java index e56a5e5..8cc39d7 100644 --- a/src/jalview/ws/jws2/Jws2Discoverer.java +++ b/src/jalview/ws/jws2/Jws2Discoverer.java @@ -25,8 +25,10 @@ import java.beans.PropertyChangeListener; import java.io.Closeable; import java.net.ConnectException; import java.net.URL; +import java.util.ArrayList; import java.util.HashSet; import java.util.Hashtable; +import java.util.List; import java.util.StringTokenizer; import java.util.Vector; @@ -41,6 +43,7 @@ import jalview.bin.Cache; import jalview.datamodel.AlignmentView; import jalview.gui.AlignFrame; import jalview.gui.Desktop; +import jalview.gui.JalviewChangeSupport; import jalview.ws.WSMenuEntryProviderI; import jalview.ws.params.ParamDatastoreI; import compbio.data.msa.MsaWS; @@ -87,7 +90,16 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI changeSupport.removePropertyChangeListener(listener); } - boolean running = false; + boolean running = false, aborted = false; + + /** + * @param aborted + * the aborted to set + */ + public void setAborted(boolean aborted) + { + this.aborted = aborted; + } Thread oldthread = null; @@ -95,7 +107,23 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI { if (running && oldthread != null && oldthread.isAlive()) { - return; + if (!aborted) + { + return; + } + while (running) + { + try + { + Cache.log + .debug("Waiting around for old discovery thread to finish."); + // wait around until old discoverer dies + Thread.sleep(100); + } catch (Exception e) + { + } + } + Cache.log.debug("Old discovery thread has finished."); } running = true; oldthread = Thread.currentThread(); @@ -115,53 +143,43 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI { services.removeAllElements(); } - for (String jwsservers : getServiceUrls()) + List qrys = new ArrayList(); + for (final String jwsservers : getServiceUrls()) + { + JabaWsServerQuery squery = new JabaWsServerQuery(this, jwsservers); + qrys.add(squery); + new Thread(squery).start(); + } + boolean finished = false; + do { try { - if (Jws2Client.validURL(jwsservers)) - { - // look for services - for (Services srv : Services.values()) - { - MsaWS service = null; - try - { - service = Jws2Client.connect(jwsservers, srv); - } catch (Exception e) - { - System.err.println("Jws2 Discoverer: Problem on " - + jwsservers + " with service " + srv + ":\n" - + e.getMessage()); - if (!(e instanceof javax.xml.ws.WebServiceException)) - { - e.printStackTrace(); - } - } - ; - if (service != null) - { - addService(jwsservers, srv, service); - } - } - - } - else - { - Cache.log.info("Ignoring invalid Jws2 service url " + jwsservers); - } + Thread.sleep(100); } catch (Exception e) { - e.printStackTrace(); - Cache.log.warn("Exception when discovering Jws2 services.", e); - } catch (Error e) + } + ; + for (JabaWsServerQuery squery : qrys) + { + finished |= !squery.isRunning(); + } + if (aborted) { - Cache.log.error("Exception when discovering Jws2 services.", e); + Cache.log.debug("Aborting " + qrys.size() + + " JABAWS discovery threads."); + for (JabaWsServerQuery squery : qrys) + { + squery.setQuit(true); + } } - } + } while (!aborted && !finished); oldthread = null; running = false; - changeSupport.firePropertyChange("services", new Vector(), services); + if (!aborted) + { + changeSupport.firePropertyChange("services", new Vector(), services); + } } /** @@ -171,7 +189,8 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI * @param srv * @param service2 */ - private void addService(String jwsservers, Services srv, MsaWS service2) + synchronized void addService(String jwsservers, Services srv, + MsaWS service2) { if (services == null) { @@ -467,17 +486,18 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI public static void main(String[] args) { - Thread runner = new Thread(getDiscoverer()); - getDiscoverer().addPropertyChangeListener(new PropertyChangeListener() + Thread runner = getDiscoverer().startDiscoverer(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { - System.out.println("Changesupport: There are now " + if (getDiscoverer().services!=null) + {System.out.println("Changesupport: There are now " + getDiscoverer().services.size() + " services"); + + } } }); - runner.start(); while (runner.isAlive()) { try @@ -617,4 +637,21 @@ public class Jws2Discoverer implements Runnable, WSMenuEntryProviderI return true; } + /** + * Start a fresh discovery thread and notify the given object when we're finished. Any known existing threads will be killed before this one is started. + * @param changeSupport2 + * @return new thread + */ + public Thread startDiscoverer(PropertyChangeListener changeSupport2) + { + if (isRunning()) + { + setAborted(true); + } + addPropertyChangeListener(changeSupport2); + Thread thr = new Thread(this); + thr.start(); + return thr; + } + }