[HOP-2315] GetPipelineImageServlet and GetWorkflowImageServlet don't work

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Fix Version/s: 0.60
• Component/s: Hop Server
• Assignee: Unassigned
• Reporter: Nicolas Adment
• Created: 17/Dec/20 23:11
• Updated: 28/Dec/20 09:58
• Resolved: 28/Dec/20 09:58

Description

It's a classloading problem, with a very simple pipeline, GetPipelineImageServlet works, but when you use a arrow (hop) with decoration icon (true, false, parallel ...) it failed to load image in ui-swt.

 

Possible cause: hop-engine tries to load images from hop-ui-swt with its own class loader.

At some point we should put the images for the graphs in engine, so we can run a server without the hop-ui-swt library

Test with the last buld hop-client-0.50-20201216.153126-1.zip

 

java.io.IOException: Error building SVG image of pipleine
at org.apache.hop.www.GetPipelineImageServlet.doGet(GetPipelineImageServlet.java:96)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:575)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:760)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:547)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221)
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:501)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:500)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.hop.core.exception.HopException:
Unable to load SVG file 'ui/images/true.svg'

Error loading SVG file ui/images/true.svg

Couldn't determine width or height of file : ui/images/true.svg

 

at org.apache.hop.core.gui.SvgGc.drawImage(SvgGc.java:654)
at org.apache.hop.core.gui.SvgGc.drawImage(SvgGc.java:582)
at org.apache.hop.pipeline.PipelinePainter.drawArrow(PipelinePainter.java:1057)
at org.apache.hop.pipeline.PipelinePainter.drawArrow(PipelinePainter.java:59)
at org.apache.hop.core.gui.BasePainter.drawArrow(BasePainter.java:478)
at org.apache.hop.pipeline.PipelinePainter.drawLine(PipelinePainter.java:966)
at org.apache.hop.pipeline.PipelinePainter.drawHop(PipelinePainter.java:681)
at org.apache.hop.pipeline.PipelinePainter.drawHop(PipelinePainter.java:673)
at org.apache.hop.pipeline.PipelinePainter.drawPipeline(PipelinePainter.java:243)
at org.apache.hop.pipeline.PipelinePainter.drawPipelineImage(PipelinePainter.java:208)
at org.apache.hop.www.GetPipelineImageServlet.generatePipelineSvgImage(GetPipelineImageServlet.java:114)
at org.apache.hop.www.GetPipelineImageServlet.doGet(GetPipelineImageServlet.java:83)
... 34 more
Caused by: org.apache.hop.core.exception.HopException:
Error loading SVG file ui/images/true.svg

Couldn't determine width or height of file : ui/images/true.svg

 

Issue Links

• is a clone of: HOP-2321 Exporting to SVG causes errors