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## org.eclipse.birt.report.engine.api
Class ReportEngine

    java.lang.Object
      org.eclipse.birt.report.engine.api.ReportEngine

All Implemented Interfaces:
  IReportEngine

    public class ReportEngine

extends java.lang.Object
implements IReportEngine

This is a wrapper class for the IReportEngine. The new user should use the IReportEngineFactory to create the IReportEngine instead of use this class directly.

See Also:
  `org.eclipes.birt.report.engine.api.ReportRunner`

Field Summary
`protected IReportEngine` | `engine` the report engine.
`protected static java.util.logging.Logger` | `logger` the logger

Constructor Summary
`ReportEngine(EngineConfig config)` Constructor.

Method Summary
`void` | `changeLogLevel(java.util.logging.Level newLevel)` Change the log level to newLevel
`IDataExtractionTask` | `createDataExtractionTask(IReportDocument reportDocument)` creates a task that allows data extraction from a report document
`IGetParameterDefinitionTask` | `createGetParameterDefinitionTask(IReportRunnable reportRunnable)` creates an engine task for obtaining report parameter definitions
`IRenderTask` | `createRenderTask(IReportDocument reportDocument)` creates a task that renders the report to a specific output format.
`IRenderTask` | `createRenderTask(IReportDocument reportDocument, IReportRunnable reportRunnable)` create a task that renders the report to a specific output format.
`IRunAndRenderTask` | `createRunAndRenderTask(IReportRunnable reportRunnable)` creates an engine task for running and rendering report directly to output format
`IRunTask` | `createRunTask(IReportRunnable reportRunnable)` creates a task to run a report to generate a report document
`void` | `destroy()` shuts down the report engine
`EngineConfig` | `getConfig()` returns the engine configuration object
`DataExtractionFormatInfo[]` | `getDataExtractionFormatInfo()` Returns data extraction extension information.
`EmitterInfo[]` | `getEmitterInfo()` Return all the emitter information which BIRT Engine can load.
`java.util.logging.Logger` | `getLogger()` get the logger used by report engine
`java.lang.String` | `getMIMEType(java.lang.String format)` the MIME type for the specific formatted supported by the extension.
`java.lang.Object` | `getRootScope()` get the root scope used by the engine
`java.lang.String[]` | `getSupportedFormats()` returns all supported output formats through BIRT engine emitter extensions
`IDocumentWriter` | `openDocumentWriter(IArchiveFile file)` creates a document writer that can write this archive file
`IReportRunnable` | `openReportDesign(java.io.InputStream designStream)` opens a report design stream and creates a report design runnable.
`IReportRunnable` | `openReportDesign(java.lang.String designName)` opens a report design file and creates a report design runnable.
`IReportRunnable` | `openReportDesign(java.lang.String name, java.io.InputStream designStream)` opens a report design stream and creates a report design runnable.
`IReportRunnable` | `openReportDesign(java.lang.String name, java.io.InputStream designStream, IResourceLocator locator)` opens a report design stream and creates a report design runnable.
`IReportDocument` | `openReportDocument(java.lang.String fileName)` opens a report document and returns an IReportDocument object, from which further information can be retrieved.
`IReportDocument` | `openReportDocument(java.lang.String systemId, java.lang.String fileName)` opens a report document and returns an IReportDocument object, from which further information can be retrieved.
`IReportDocument` | `openReportDocument(java.lang.String systemId, java.lang.String fileName, IResourceLocator locator)` opens a report document and returns an IReportDocument object, from which further information can be retrieved.
`void` | `setLogger(java.util.logging.Logger logger)` set the logger used by report engine.
`void` | `shutdown()` Deprecated.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### logger

    protected static java.util.logging.Logger logger

  the logger

### engine

    protected IReportEngine engine

  the report engine.

Constructor Detail

### ReportEngine

    public ReportEngine(EngineConfig config)

  Constructor. If config is null, engine derives BIRT_HOME from the location of the engine jar file, and derives data driver directory as $BIRT_HOME/drivers. For a simple report with no images and links, engine will run without complaining. If the report has image/chart defined, the engine has to be configured with relevant image and chart handlers.

  Parameters:
    `config` - an engine configuration object used to configure the engine

Method Detail

### getRootScope

    public java.lang.Object getRootScope()

  get the root scope used by the engine

  Specified by:
    `getRootScope` in interface `IReportEngine`
  Returns:

### changeLogLevel

    public void changeLogLevel(java.util.logging.Level newLevel)

  Change the log level to newLevel

  Specified by:
    `changeLogLevel` in interface `IReportEngine`
  Parameters:
    `newLevel` - - new log level

### getConfig

    public EngineConfig getConfig()

  returns the engine configuration object

  Specified by:
    `getConfig` in interface `IReportEngine`
  Returns:
    the engine configuration object

### openReportDesign

    public IReportRunnable openReportDesign(java.lang.String designName)
                                     throws EngineException

  opens a report design file and creates a report design runnable. From the ReportRunnable object, embedded images and parameter definitions can be retrieved. Constructing an engine task requires a report design runnable object.

  Specified by:
    `openReportDesign` in interface `IReportEngine`
  Parameters:
    `designName` - the full path of the report design file
  Returns:
    a report design runnable object
  Throws:
    `EngineException` - throwed when the input file does not exist, or the file is invalid

### openReportDesign

    public IReportRunnable openReportDesign(java.io.InputStream designStream)
                                     throws EngineException

  opens a report design stream and creates a report design runnable. From the ReportRunnable object, embedded images and parameter definitions can be retrieved. Constructing an engine task requires a report design runnableobject.

  Specified by:
    `openReportDesign` in interface `IReportEngine`
  Parameters:
    `designStream` - the report design input stream
  Returns:
    a report design runnable object
  Throws:
    `EngineException` - throwed when the input stream is null, or the stream does not yield a valid report design

### openReportDesign

    public IReportRunnable openReportDesign(java.lang.String name,
                                            java.io.InputStream designStream)
                                     throws EngineException

  opens a report design stream and creates a report design runnable. From the ReportRunnable object, embedded images and parameter definitions can be retrieved. Constructing an engine task requires a report design runnable object.

  Specified by:
    `openReportDesign` in interface `IReportEngine`
  Parameters:
    `name` - system id of the report design
    `designStream` - input stream of the report design
  Returns:
    a report design runnable object
  Throws:
    `EngineException` - throwed when the input stream is null, or the stream does not yield a valid report design

### createRunAndRenderTask

    public IRunAndRenderTask createRunAndRenderTask(IReportRunnable reportRunnable)

  creates an engine task for running and rendering report directly to output format

  Specified by:
    `createRunAndRenderTask` in interface `IReportEngine`
  Parameters:
    `reportRunnable` - the runnable report design object
  Returns:
    a run and render report task

### createGetParameterDefinitionTask

    public IGetParameterDefinitionTask createGetParameterDefinitionTask(IReportRunnable reportRunnable)

  creates an engine task for obtaining report parameter definitions

  Specified by:
    `createGetParameterDefinitionTask` in interface `IReportEngine`
  Parameters:
    `reportRunnable` - the runnable report design object
  Returns:
    a run and render report task

### getSupportedFormats

    public java.lang.String[] getSupportedFormats()

  returns all supported output formats through BIRT engine emitter extensions

  Specified by:
    `getSupportedFormats` in interface `IReportEngine`
  Returns:
    all supported output formats through BIRT engine emitter extensions

### getEmitterInfo

    public EmitterInfo[] getEmitterInfo()

  Return all the emitter information which BIRT Engine can load.

  Specified by:
    `getEmitterInfo` in interface `IReportEngine`
  Returns:
    the emitter information

### getMIMEType

    public java.lang.String getMIMEType(java.lang.String format)

  the MIME type for the specific formatted supported by the extension.

  Specified by:
    `getMIMEType` in interface `IReportEngine`
  Parameters:
    `format` - the output format
    `extensionID` - the extension ID, which could be null if only one plugin supports the output format
  Returns:
    the MIME type for the specific formatted supported by the extension.

### destroy

    public void destroy()

  shuts down the report engine

  Specified by:
    `destroy` in interface `IReportEngine`

### createRunTask

    public IRunTask createRunTask(IReportRunnable reportRunnable)

  creates a task to run a report to generate a report document

  Specified by:
    `createRunTask` in interface `IReportEngine`
  Parameters:
    `reportRunnable` - the runnable report design object
  Returns:
    a task that runs the report

### createRenderTask

    public IRenderTask createRenderTask(IReportDocument reportDocument)

  creates a task that renders the report to a specific output format.

  Specified by:
    `createRenderTask` in interface `IReportEngine`
  Parameters:
    `reportDocument` - a handle to an IReportDocument object
  Returns:
    a task that renders a report to an output format

### openReportDocument

    public IReportDocument openReportDocument(java.lang.String fileName)
                                       throws EngineException

  opens a report document and returns an IReportDocument object, from which further information can be retrieved.

  Specified by:
    `openReportDocument` in interface `IReportEngine`
  Parameters:
    `fileName` - the report document name. report document is an archive in BIRT.
  Returns:
    A handle to the report document
  Throws:
    `EngineException` - throwed when the report document archive does not exist, or the file is not a valud report document

### createDataExtractionTask

    public IDataExtractionTask createDataExtractionTask(IReportDocument reportDocument)

  creates a task that allows data extraction from a report document

  Specified by:
    `createDataExtractionTask` in interface `IReportEngine`
  Parameters:
    `reportDocument` - a handle to an IReportDocument object
  Returns:
    a task that renders a report to an output format

### shutdown

    public void shutdown()

  Deprecated.

  shut down the engine, release all the resources.

  Specified by:
    `shutdown` in interface `IReportEngine`

### openReportDocument

    public IReportDocument openReportDocument(java.lang.String systemId,
                                              java.lang.String fileName)
                                       throws EngineException

  opens a report document and returns an IReportDocument object, from which further information can be retrieved.

  Specified by:
    `openReportDocument` in interface `IReportEngine`
  Parameters:
    `systemId` - the system id the opend document. It is used to access the resources with relative path in the report document. If it is NULL, a saved one is used.
    `fileName` - the report document name. report document is an archive in BIRT.
  Returns:
    A handle to the report document
  Throws:
    `EngineException` - throwed when the report document archive does not exist, or the file is not a valid report document

### openReportDesign

    public IReportRunnable openReportDesign(java.lang.String name,
                                            java.io.InputStream designStream,
                                            IResourceLocator locator)
                                     throws EngineException

  opens a report design stream and creates a report design runnable. From the ReportRunnable object, embedded images and parameter definitions can be retrieved. Constructing an engine task requires a report design runnable object.

  Specified by:
    `openReportDesign` in interface `IReportEngine`
  Parameters:
    `name` - system id of the report design
    `designStream` - input stream of the report design
    `locator` - the resource locator used to locate files referenced in the design
  Returns:
    a report design runnable object
  Throws:
    `EngineException` - throwed when the input stream is null, or the stream does not yield a valid report design

### openReportDocument

    public IReportDocument openReportDocument(java.lang.String systemId,
                                              java.lang.String fileName,
                                              IResourceLocator locator)
                                       throws EngineException

  opens a report document and returns an IReportDocument object, from which further information can be retrieved.

  Specified by:
    `openReportDocument` in interface `IReportEngine`
  Parameters:
    `systemId` - the system id the opend document. It is used to access the resources with relative path in the report document. If it is NULL, a saved one is used.
    `fileName` - the report document name. report document is an archive in BIRT.
    `locator` - the resource locator used to locate files referenced in the design
  Returns:
    A handle to the report document
  Throws:
    `EngineException` - throwed when the report document archive does not exist, or the file is not a valud report document

### getLogger

    public java.util.logging.Logger getLogger()

  get the logger used by report engine

  Specified by:
    `getLogger` in interface `IReportEngine`
  Returns:
    the logger used by the report engine

### setLogger

    public void setLogger(java.util.logging.Logger logger)

  set the logger used by report engine.

  Specified by:
    `setLogger` in interface `IReportEngine`
  Parameters:
    `logger` -

### createRenderTask

    public IRenderTask createRenderTask(IReportDocument reportDocument,
                                        IReportRunnable reportRunnable)

  create a task that renders the report to a specific output format.

  Specified by:
    `createRenderTask` in interface `IReportEngine`
  Parameters:
    `reportDocument` - a handle to an IReportDocument object
    `reportRunnable` - the runnable report design object
  Returns:
    a task that renders a report to an output format

### getDataExtractionFormatInfo

    public DataExtractionFormatInfo[] getDataExtractionFormatInfo()

  Returns data extraction extension information.

  Specified by:
    `getDataExtractionFormatInfo` in interface `IReportEngine`
  Returns:
    the data extraction extension information

### openDocumentWriter

    public IDocumentWriter openDocumentWriter(IArchiveFile file)
                                       throws EngineException

  creates a document writer that can write this archive file

  Specified by:
    `openDocumentWriter` in interface `IReportEngine`
  Parameters:
    `file` - the archive file
  Returns:
    a document writer of this archive file
  Throws:
    `EngineException`

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