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Posted to commits@taverna.apache.org by st...@apache.org on 2015/02/23 11:17:08 UTC

[27/28] incubator-taverna-common-activities git commit: Revert "temporarily empty repository"

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/RuntimeEnvironmentConstraint.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/RuntimeEnvironmentConstraint.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/RuntimeEnvironmentConstraint.java
new file mode 100644
index 0000000..baa68d2
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/RuntimeEnvironmentConstraint.java
@@ -0,0 +1,162 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+ 
+import java.util.Collection;
+import java.util.Iterator;
+
+import org.apache.log4j.Logger;
+
+
+/**
+ * When use cases present a runtime environment, then they don't want to express
+ * that these would provide such, but that these request such, i.e. they constrain
+ * lists of potentially eligible queues. 
+ * @author Steffen Moeller
+ * @since 2008
+ */
+public class RuntimeEnvironmentConstraint extends RuntimeEnvironment {
+	
+	private static Logger logger = Logger.getLogger(RuntimeEnvironmentConstraint.class);
+
+	private static String[] ACCEPTED_RELATIONS = new String[] {"=", ">=", "<=", ">", "<"};
+	/**
+	 * If there is no relation specified, presume >=
+	 */
+	private static String DEFAULT_RELATION = ">=";
+	
+	public static String[] getAcceptedRelations() {
+		return ACCEPTED_RELATIONS;
+	}
+
+	public static String getDefaultRelation() {
+		return DEFAULT_RELATION;
+	}
+
+	/**
+	 *  Identifies the relation between runtime environments to be tested
+	 */
+	protected String relation;
+	
+	/**
+	 * Accessor function for relation
+	 */
+	public String getRelation() {
+		return this.relation;
+	}
+	
+	/**
+	 * Tests of a relation is supported
+	 * @param relation
+	 * @return true iff in <, > , <=, >=, =
+	 */
+	public static boolean acceptedRelation(String relation) {
+		if ((null == relation) || relation.equals("")) {
+			return false;
+		}
+		return relation.equals("=")||relation.equals(">=")||relation.equals("<=")||relation.equals(">")||relation.equals("<");
+	}
+	
+	/**
+	 * Constructor
+	 * @param id - expects the name of the runtime environment together with the version to which the
+	 * @param relation - relates to (">","<","=",">=","<=")
+	 */
+	public RuntimeEnvironmentConstraint(String id, String relation) {
+		super(id);
+		if (null == relation || relation.equals("")) {
+			relation=RuntimeEnvironmentConstraint.getDefaultRelation();
+		}
+		if (relation.equals("==")) {
+			relation="=";
+		}
+		else if (relation.equals("=<")) {
+			relation="<=";
+		}
+		else if (!RuntimeEnvironmentConstraint.acceptedRelation(relation)) {
+			logger.warn("Unknown relation '"+relation+"', presuming '"+RuntimeEnvironmentConstraint.getDefaultRelation()+"'");
+			relation=RuntimeEnvironmentConstraint.getDefaultRelation();
+		}
+		this.relation=relation;
+	}
+	
+	/**
+	 * Perfoms test if the RuntimeEnvironment (RE) passed as argument fulfills the requirements set by the constraint.
+	 * @param re - RE to test
+	 * @return true iff the RE fulfills this REconstraint.
+	 */
+	public boolean isFulfilledBy(RuntimeEnvironment re) {
+		logger.info(re.getID()+" " + this.getRelation() + " "+this.getID() + " ?");
+		if (this.getRelation().equals("=")) {
+			logger.info("=");
+			return re.getID().equals(this.getID());
+		}
+		if (!re.getName().equals(this.getName())) {
+			logger.warn("Name match failed");
+			return false;
+		}
+		int c = RuntimeEnvironment.compareVersions(re.getVersion(),this.getVersion());
+		logger.info("c="+c);
+		if (this.getRelation().equals(">")) return c>0;
+		if (this.getRelation().equals(">=")) return c>=0;
+		if (this.getRelation().equals("<=")) return c<=0;
+		if (this.getRelation().equals("<")) return c<0;
+		throw new RuntimeException("Unknown/untreated releation '"+this.getRelation()+"'");
+	}
+	
+	/**
+	 * Iterates over all the RuntimeEnvironments passed as argument.
+	 * @param REs - list of RuntimeEnvironments, mostly those offered at a particular queue
+	 * @return true iff any RE among the REs passed as argument are fulfilling the constraint
+	 */
+	public boolean isFulfilledByAtLeastOneIn(Collection<RuntimeEnvironment> REs) {
+		boolean fulfilled = false;
+		Iterator<RuntimeEnvironment> i = REs.iterator();
+		while(i.hasNext() && !fulfilled) {
+			RuntimeEnvironment r = i.next();
+			fulfilled = this.isFulfilledBy(r);
+		}
+		return fulfilled;
+	}
+	/**
+	 * For testing purposes
+	 */
+	public static void main(String argv[]) {
+		try {
+			if (argv[0].equals("--help") || argv.length != 3) {
+				logger.error("Expecting arguments (<|>|=|<=|>=) runtime1-version runtime2-version");
+			}
+			else {
+				RuntimeEnvironmentConstraint r1 = new RuntimeEnvironmentConstraint(argv[1], argv[0]);
+				RuntimeEnvironment r2 = new RuntimeEnvironment(argv[2]);
+				logger.info("r1.getName(): "+r1.getName());
+				logger.info("r1.getVersion(): "+r1.getVersion());
+				logger.info("r1.getRelation(): "+r1.getRelation());
+				logger.info("r2.getName(): "+r2.getName());
+				logger.info("r2.getVersion(): "+r2.getVersion());
+				logger.info("r1.isFulfilledBy(r2): "+String.valueOf(r1.isFulfilledBy(r2)));
+			}
+		}
+		catch (Exception e) {
+			logger.error(e);
+		}
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInput.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInput.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInput.java
new file mode 100644
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+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInput.java
@@ -0,0 +1,136 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+
+import java.nio.charset.Charset;
+
+import net.sf.taverna.t2.activities.externaltool.ExternalToolActivity;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationBean;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty;
+
+/**
+ * Integrates inputs to the grid that come from the use case descriptions
+ * with those that are fed through the workflow.
+ *
+ * this class controls name and data storage of one input,
+ * no matter where the data comes from
+ */
+@ConfigurationBean(uri = ExternalToolActivity.URI + "#AbstractScriptInput")
+public abstract class ScriptInput {
+	/**
+	 * This input can be referenced under the name 'tag'.
+	 */
+	private String tag = null;
+	/**
+	 * In most cases, the data will be stored under a specific
+	 * filename.
+	 */
+	private boolean file = false;
+	/**
+	 * Set, if the name of the file to be executed is not
+	 * explicitly set but prepared by some automatism and referenced
+	 * via the tagging principle.
+	 */
+	private boolean tempFile = false;
+	/**
+	 * True if (!) the data is binary. (Text otherwise)
+	 */
+	private boolean binary = false;
+
+	private String charsetName = Charset.defaultCharset().name();
+	private boolean forceCopy = false;
+
+	/**
+	 * @return the tag
+	 */
+	public final String getTag() {
+		return tag;
+	}
+	/**
+	 * @param tag the tag to set
+	 */
+	@ConfigurationProperty(name = "tag", label = "Tag")
+	public final void setTag(String tag) {
+		this.tag = tag;
+	}
+	/**
+	 * @return the file
+	 */
+	public final boolean isFile() {
+		return file;
+	}
+	/**
+	 * @param file the file to set
+	 */
+	@ConfigurationProperty(name = "file", label = "File")
+	public final void setFile(boolean file) {
+		this.file = file;
+	}
+	/**
+	 * @return the tempFile
+	 */
+	public final boolean isTempFile() {
+		return tempFile;
+	}
+	/**
+	 * @param tempFile the tempFile to set
+	 */
+	@ConfigurationProperty(name = "tempFile", label = "Temporary File")
+	public final void setTempFile(boolean tempFile) {
+		this.tempFile = tempFile;
+	}
+	/**
+	 * @return the binary
+	 */
+	public final boolean isBinary() {
+		return binary;
+	}
+	/**
+	 * @param binary the binary to set
+	 */
+	@ConfigurationProperty(name = "binary", label = "Binary")
+	public final void setBinary(boolean binary) {
+		this.binary = binary;
+	}
+
+	public String getCharsetName() {
+		return this.charsetName;
+	}
+	/**
+	 * @param charsetName the charsetName to set
+	 */
+	@ConfigurationProperty(name = "charsetName", label = "Chararter Set")
+	public void setCharsetName(String charsetName) {
+		this.charsetName = charsetName;
+	}
+
+	@ConfigurationProperty(name = "forceCopy", label = "Force Copy")
+	public final void setForceCopy(boolean forceCopy) {
+		this.forceCopy = forceCopy;
+
+	}
+	/**
+	 * @return the forceCopy
+	 */
+	public boolean isForceCopy() {
+		return forceCopy;
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputStatic.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputStatic.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputStatic.java
new file mode 100644
index 0000000..4e108b9
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+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputStatic.java
@@ -0,0 +1,75 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+
+import net.sf.taverna.t2.activities.externaltool.ExternalToolActivity;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationBean;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty;
+
+/**
+ * This subclass of script input is used to manage static content
+ * which is embedded into the use case description.
+ */
+@ConfigurationBean(uri = ExternalToolActivity.URI + "#ScriptInputStatic")
+public class ScriptInputStatic extends ScriptInput {
+
+	public ScriptInputStatic() {
+	}
+
+	private String url = null;  //if this is set, load content from remote URL
+	private String content = null;
+
+	@Override
+	public String toString() {
+		return "InputStatic[tag: " +
+			getTag() + (isFile() ? ", file" : "") + (isTempFile() ? ", tempfile" : "") + (isBinary() ? ", binary" : "") + ", content: " + content + "]";
+	}
+
+	/**
+	 * @return the url
+	 */
+	public final String getUrl() {
+		return url;
+	}
+
+	/**
+	 * @param url the url to set
+	 */
+	@ConfigurationProperty(name = "url", label = "URL", required=false)
+	public final void setUrl(String url) {
+		this.url = url;
+	}
+
+	/**
+	 * @return the content
+	 */
+	public final String getContent() {
+		return content;
+	}
+
+	/**
+	 * @param content the content to set
+	 */
+	@ConfigurationProperty(name = "content", label = "Content", required=false)
+	public final void setContent(String content) {
+		this.content = content;
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputUser.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputUser.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputUser.java
new file mode 100644
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+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptInputUser.java
@@ -0,0 +1,101 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+import java.util.ArrayList;
+
+import net.sf.taverna.t2.activities.externaltool.ExternalToolActivity;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationBean;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty;
+
+/**
+ * Internal description of output
+ */
+@ConfigurationBean(uri = ExternalToolActivity.URI + "#ScriptInput")
+public class ScriptInputUser extends ScriptInput {
+
+	/**
+	 * This input may be fed from multiple ouputs.
+	 */
+	private boolean list = false;
+	/**
+	 * True if the data from a list input in taverna is concatenated into one single input file.
+	 */
+	private boolean concatenate = false;
+
+	private ArrayList<String> mime = new ArrayList<String>();
+
+	@Override
+	public String toString() {
+		return "Input[tag: " + getTag() + (isFile() ? ", file" : "")
+				+ (isTempFile() ? ", tempfile" : "")
+				+ (isBinary() ? ", binary" : "") + (list ? ", list" : "")
+				+ (concatenate ? ", concatenate" : "")
+				+ " mime: " + mime.toString() + "]";
+	}
+
+	/**
+	 * @return the list
+	 */
+	public final boolean isList() {
+		return list;
+	}
+
+	/**
+	 * @param list the list to set
+	 */
+	@ConfigurationProperty(name = "list", label = "List")
+	public final void setList(boolean list) {
+		this.list = list;
+	}
+
+	/**
+	 * @return the concatenate
+	 */
+	public final boolean isConcatenate() {
+		return concatenate;
+	}
+
+	/**
+	 * @param concatenate the concatenate to set
+	 */
+	@ConfigurationProperty(name = "concatenate", label = "Concatenate")
+	public final void setConcatenate(boolean concatenate) {
+		this.concatenate = concatenate;
+	}
+
+	/**
+	 * @return the mime
+	 */
+	public final ArrayList<String> getMime() {
+		if (mime == null) {
+			mime = new ArrayList<String>();
+		}
+		return mime;
+	}
+
+	/**
+	 * @param mime the mime to set
+	 */
+	@ConfigurationProperty(name = "mime", label = "Mime Types", required=false)
+	public final void setMime(ArrayList<String> mime) {
+		this.mime = mime;
+	}
+};

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptOutput.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptOutput.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptOutput.java
new file mode 100644
index 0000000..fe63cc9
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/ScriptOutput.java
@@ -0,0 +1,90 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+import java.util.ArrayList;
+
+import net.sf.taverna.t2.activities.externaltool.ExternalToolActivity;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationBean;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty;
+
+/**
+ * Internal description of input
+ */
+@ConfigurationBean(uri = ExternalToolActivity.URI + "#ScriptOutput")
+public class ScriptOutput {
+	private String path;
+	private boolean binary;
+	private ArrayList<String> mime = new ArrayList<String>();
+
+	@Override
+	public String toString() {
+		return "Output[path: " + path + (binary ? ", binary" : "")
+				+ " mime: " + mime.toString() + "]";
+	}
+
+	/**
+	 * @return the path
+	 */
+	public final String getPath() {
+		return path;
+	}
+
+	/**
+	 * @param path the path to set
+	 */
+	@ConfigurationProperty(name = "path", label = "Path")
+	public final void setPath(String path) {
+		this.path = path;
+	}
+
+	/**
+	 * @return the binary
+	 */
+	public final boolean isBinary() {
+		return binary;
+	}
+
+	/**
+	 * @param binary the binary to set
+	 */
+	@ConfigurationProperty(name = "binary", label = "Binary")
+	public final void setBinary(boolean binary) {
+		this.binary = binary;
+	}
+
+	/**
+	 * @return the mime
+	 */
+	public final ArrayList<String> getMime() {
+		if (mime == null) {
+			mime = new ArrayList<String>();
+		}
+		return mime;
+	}
+
+	/**
+	 * @param mime the mime to set
+	 */
+	@ConfigurationProperty(name = "mime", label = "Mime Types", required=false)
+	public final void setMime(ArrayList<String> mime) {
+		this.mime = mime;
+	}
+};

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseDescription.java
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diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseDescription.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseDescription.java
new file mode 100644
index 0000000..217eae5
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+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseDescription.java
@@ -0,0 +1,899 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import javax.swing.ImageIcon;
+
+import net.sf.taverna.t2.activities.externaltool.ExternalToolActivity;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationBean;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty;
+import net.sf.taverna.t2.workflowmodel.processor.config.ConfigurationProperty.OrderPolicy;
+import net.sf.taverna.t2.workflowmodel.serialization.DeserializationException;
+import net.sf.taverna.t2.workflowmodel.utils.Tools;
+
+import org.apache.log4j.Logger;
+import org.jdom.Document;
+import org.jdom.Element;
+import org.jdom.JDOMException;
+import org.jdom.input.SAXBuilder;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ * Class representation of XML-description of UseCases
+ */
+@ConfigurationBean(uri = ExternalToolActivity.URI + "#ToolDescription")
+public class UseCaseDescription {
+
+	private static Logger logger = Logger.getLogger(UseCaseDescription.class);
+
+	/**
+	 * Identifier for the retrieval of this UseCase in the sharedRepository
+	 * database, respectively its XML export.
+	 */
+	private String usecaseid = "";
+	/**
+	 * Workflow Elements now can get a group identifier. There may be subgroups
+	 * divided by :
+	 */
+	private String group = "";
+	/**
+	 * Textual description of the use case itself. This description is very
+	 * short to fit on the single line that is prepared for such descriptions in
+	 * the Taverna workflow element list.
+	 */
+	private String description = "";
+	/**
+	 * What is actually executed on the shell.
+	 */
+	private String command = "";
+
+	/**
+	 * Accessor function of command
+	 *
+	 * @return shell-executable series of commands
+	 */
+	public String getCommand() {
+		if (null == command) {
+			// FIXME: Is this possible?
+			return "";
+		} else {
+			return command;
+		}
+	}
+
+	/**
+	 * Routine that may be executed as a first check if the program is indeed
+	 * installed.
+	 */
+	private String test_local = null;
+
+	/**
+	 * URL of an icon that would help users to recognise the use case
+	 */
+	private String icon_url = null;
+
+	private int preparingTimeoutInSeconds = 20 * 60; // 20 minutes
+	private int executionTimeoutInSeconds = 30 * 60; // 30 minutes
+
+	private List<String> tags = new ArrayList<String>();
+	private List<RuntimeEnvironmentConstraint> REs = new ArrayList<RuntimeEnvironmentConstraint>();
+	private ArrayList<String> queue_preferred = new ArrayList<String>();
+	private ArrayList<String> queue_deny = new ArrayList<String>();
+
+	private List<ScriptInputStatic> static_inputs = new ArrayList<ScriptInputStatic>();
+	private Map<String, ScriptInput> inputs = new HashMap<String, ScriptInput>();
+	private Map<String, ScriptOutput> outputs = new HashMap<String, ScriptOutput>();
+
+	private boolean includeStdIn = false;
+	private boolean includeStdOut = true;
+	private boolean includeStdErr = true;
+
+	private List<Integer> validReturnCodes = new ArrayList<Integer>();
+	
+	/**
+	 * Default constructor to make xstream happy
+	 */
+	public UseCaseDescription() {
+		
+	}
+
+	/**
+	 * Constructor, for special purpose usecases.
+	 *
+	 * @param usecaseid
+	 */
+	public UseCaseDescription(String usecaseid) {
+		this.setUsecaseid(usecaseid);
+	}
+
+	/**
+	 * Constructor, expects an input stream containing the xml. for example, use
+	 * getClass().getClassLoader().getResourceAsStream("..") to load a usecase
+	 * from your program jar
+	 */
+	public UseCaseDescription(InputStream programAsStream) throws DeserializationException {
+		SAXBuilder builder = new SAXBuilder();
+		Document doc;
+		try {
+			doc = builder.build(programAsStream);
+			programAsStream.close();
+		} catch (JDOMException e) {
+			throw new DeserializationException("Error deserializing usecase", e);
+		} catch (IOException e) {
+			throw new DeserializationException("Error deserializing usecase", e);
+		}
+		readFromXmlElement(doc.getRootElement());
+	}
+
+	/**
+	 * Constructor, expects an XML-root to dissect.
+	 */
+	public UseCaseDescription(Element programNode) throws DeserializationException {
+		readFromXmlElement(programNode);
+	}
+
+/**
+ * Produce an XML description of the UseCaseDescription
+ */
+	public Element writeToXMLElement() {
+		Element programNode = new Element("program");
+		programNode.setAttribute("name", getUsecaseid());
+		programNode.setAttribute("description", getDescription());
+		// Always use element version of command
+//		programNode.setAttribute("command", getCommand());
+		Element commandNode = new Element("command");
+		commandNode.addContent(getCommand());
+		programNode.addContent(commandNode);
+		programNode.setAttribute("timeout", Integer.toString(getExecutionTimeoutInSeconds()));
+		programNode.setAttribute("preparing_timeout", Integer.toString(getPreparingTimeoutInSeconds()));
+		programNode.setAttribute("includeStdIn", Boolean.toString(isIncludeStdIn()));
+		programNode.setAttribute("includeStdOut", Boolean.toString(isIncludeStdOut()));
+		programNode.setAttribute("includeStdErr", Boolean.toString(isIncludeStdErr()));
+		for (ScriptInputStatic si : getStatic_inputs()) {
+			Element staticNode = new Element("static");
+			if (si.isBinary()) {
+				staticNode.setAttribute("binary", "true");
+			}
+			if (si.isForceCopy()) {
+				staticNode.setAttribute("forceCopy", "true");
+			}
+			if (si.isFile()) {
+				Element fileNode = new Element("file");
+				fileNode.setAttribute("path", si.getTag());
+				staticNode.addContent(fileNode);
+			} else if (si.isTempFile()) {
+				Element tempfileNode = new Element("tempfile");
+				tempfileNode.setAttribute("tag", si.getTag());
+				staticNode.addContent(tempfileNode);
+			} else {
+				Element replaceNode = new Element("replace");
+				replaceNode.setAttribute("tag", si.getTag());
+				staticNode.addContent(replaceNode);
+			}
+			if (si.getUrl() != null) {
+				Element contentNode = new Element("content");
+				contentNode.setAttribute("url", si.getUrl());
+				staticNode.addContent(contentNode);
+			} else {
+				Element contentNode = new Element("content");
+				contentNode.addContent((String) si.getContent());
+				staticNode.addContent(contentNode);
+			}
+			programNode.addContent(staticNode);
+		}
+		for (Entry<String, ScriptInput> entry : getInputs().entrySet()) {
+			String name = entry.getKey();
+			ScriptInputUser si = (ScriptInputUser) entry.getValue();
+			Element inputNode = new Element("input");
+			inputNode.setAttribute("name", name);
+			if (si.isBinary()) {
+				inputNode.setAttribute("binary", "true");
+			}
+			if (si.isForceCopy()) {
+				inputNode.setAttribute("forceCopy", "true");
+			}
+			if (si.isConcatenate()) {
+				inputNode.setAttribute("concatenate", "true");
+			}
+			if (si.isList()) {
+				inputNode.setAttribute("list", "true");
+			}
+			if (si.isFile()) {
+				Element fileNode = new Element("file");
+				fileNode.setAttribute("path", si.getTag());
+				inputNode.addContent(fileNode);
+			} else if (si.isTempFile()) {
+				Element tempfileNode = new Element("tempfile");
+				tempfileNode.setAttribute("tag", si.getTag());
+				inputNode.addContent(tempfileNode);
+			} else {
+				Element replaceNode = new Element("replace");
+				replaceNode.setAttribute("tag", si.getTag());
+				inputNode.addContent(replaceNode);
+			}
+			for (String mime : si.getMime()) {
+				Element mimeNode = new Element("mime");
+				mimeNode.setAttribute("type", mime);
+				inputNode.addContent(mimeNode);
+			}
+			programNode.addContent(inputNode);
+		}
+		for (Entry<String, ScriptOutput> entry : getOutputs().entrySet()) {
+			String name = entry.getKey();
+			ScriptOutput so = entry.getValue();
+			Element outputNode = new Element("output");
+			outputNode.setAttribute("name", name);
+			if (so.isBinary()) {
+				outputNode.setAttribute("binary", "true");
+			}
+			Element fromfileNode = new Element("fromfile");
+			fromfileNode.setAttribute("path", so.getPath());
+			outputNode.addContent(fromfileNode);
+			for (String mime : so.getMime()) {
+				Element mimeNode = new Element("mime");
+				mimeNode.setAttribute("type", mime);
+				outputNode.addContent(mimeNode);
+			}
+			programNode.addContent(outputNode);
+		}
+		for (RuntimeEnvironmentConstraint rec : getREs()) {
+			Element rteNode = new Element("rte");
+			rteNode.setAttribute("name", rec.getID());
+			rteNode.setAttribute("relation", rec.getRelation());
+			programNode.addContent(rteNode);
+		}
+		if ((group != null) && !group.isEmpty()) {
+			Element groupNode = new Element("group");
+			groupNode.setAttribute("name", group);
+			programNode.addContent(groupNode);
+		}
+		if ((test_local != null) && !test_local.isEmpty()) {
+			Element testNode = new Element("test");
+			testNode.setAttribute("local", test_local);
+			programNode.addContent(testNode);
+		}
+		if ((icon_url != null) && !icon_url.isEmpty()) {
+			Element iconNode = new Element("icon");
+			iconNode.setAttribute("url", icon_url);
+			programNode.addContent(iconNode);
+		}
+		if (!getQueue_preferred().isEmpty() || !getQueue_deny().isEmpty()) {
+			Element queueNode = new Element("queue");
+			for (String url : getQueue_preferred()) {
+				Element preferredNode = new Element("prefer");
+				preferredNode.setAttribute("url", url);
+				queueNode.addContent(preferredNode);
+			}
+			for (String url : getQueue_deny()) {
+				Element denyNode = new Element("deny");
+				denyNode.setAttribute("url", url);
+				queueNode.addContent(denyNode);
+			}
+			programNode.addContent(queueNode);
+		}
+			Element validReturnCodesNode = new Element("validReturnCodes");
+			validReturnCodesNode.setAttribute("codes", getReturnCodesAsText());
+			programNode.addContent(validReturnCodesNode);
+
+		return programNode;
+	}
+	/**
+	 * Specifies the UseCaseDescription from the root of an XML description
+	 * which is accessible online.
+	 *
+	 * @param programNode
+	 * @throws DeserializationException
+	 */
+	private void readFromXmlElement(Element programNode) throws DeserializationException {
+		if (programNode.getName().compareToIgnoreCase("program") != 0)
+			throw new DeserializationException("Expected <program>, read '" + programNode.getName() + "'");
+
+		setUsecaseid(programNode.getAttributeValue("name"));
+		setDescription(programNode.getAttributeValue("description"));
+		setCommand(programNode.getAttributeValue("command"));
+		String timeoutStr = programNode.getAttributeValue("timeout");
+		if (timeoutStr != null)
+			setExecutionTimeoutInSeconds(Integer.parseInt(timeoutStr));
+		timeoutStr = programNode.getAttributeValue("preparing_timeout");
+		if (timeoutStr != null)
+			setPreparingTimeoutInSeconds(Integer.parseInt(timeoutStr));
+
+		String includeStdInStr = programNode.getAttributeValue("includeStdIn");
+		if (includeStdInStr != null && !includeStdInStr.isEmpty()) {
+			setIncludeStdIn(includeStdInStr.equals("true"));
+		}
+
+		String includeStdOutStr = programNode.getAttributeValue("includeStdOut");
+		if (includeStdOutStr != null && !includeStdOutStr.isEmpty()) {
+			setIncludeStdOut(includeStdOutStr.equals("true"));
+		}
+
+		String includeStdErrStr = programNode.getAttributeValue("includeStdErr");
+		if (includeStdErrStr != null && !includeStdErrStr.isEmpty()) {
+			setIncludeStdErr(includeStdErrStr.equals("true"));
+		}
+
+		for (Object cur_ob : programNode.getChildren()) {
+			Element cur = (Element) cur_ob;
+
+			String name = cur.getAttributeValue("name");
+
+			String type = cur.getName();
+			boolean binary = false;
+			if (null != cur.getAttributeValue("binary") && cur.getAttributeValue("binary").equalsIgnoreCase("true")) {
+				binary = true;
+			}
+			boolean list = false;
+			if (null != cur.getAttributeValue("list") && cur.getAttributeValue("list").equalsIgnoreCase("true")) {
+				list = true;
+			}
+			boolean concatenate = false;
+			if (null != cur.getAttributeValue("concatenate") && cur.getAttributeValue("concatenate").equalsIgnoreCase("true")) {
+				concatenate = true;
+			}
+			boolean forceCopy = false;
+			if (null != cur.getAttributeValue("forceCopy") && cur.getAttributeValue("forceCopy").equalsIgnoreCase("true")) {
+				forceCopy = true;
+			}
+
+			Element inner = null;
+			String innerType = null, tag = null, path = null;
+			if (cur.getChildren().size() > 0) {
+				inner = (Element) cur.getChildren().get(0);
+				innerType = inner.getName();
+				tag = inner.getAttributeValue("tag");
+				path = inner.getAttributeValue("path");
+			}
+			// build mime type declaration list
+			ArrayList<String> mime = new ArrayList<String>();
+			for (Object child : cur.getChildren()) {
+				Element curChild = (Element) child;
+				if (curChild.getName().equalsIgnoreCase("mime")) {
+					mime.add(curChild.getAttributeValue("type"));
+				}
+			}
+			if (type.equalsIgnoreCase("static")) {
+				ScriptInputStatic si = new ScriptInputStatic();
+				Element content = cur.getChild("content");
+				if (content == null)
+					throw new DeserializationException("FIXME: script tag without embedded content tag");
+				si.setUrl(content.getAttributeValue("url"));
+				if (si.getUrl() == null)
+					si.setContent(content.getText());
+				fillInputDescription(si, binary, forceCopy, innerType, tag, path);
+				getStatic_inputs().add(si);
+			} else if (type.equalsIgnoreCase("input")) {
+				ScriptInputUser indesc = new ScriptInputUser();
+				indesc.setList(list);
+				indesc.setMime(mime);
+				indesc.setConcatenate(concatenate);
+				fillInputDescription(indesc, binary, forceCopy, innerType, tag, path);
+				getInputs().put(Tools.sanitiseName(name), indesc);
+			} else if (type.equalsIgnoreCase("output")) {
+				ScriptOutput outdesc = new ScriptOutput();
+				outdesc.setMime(mime);
+
+				boolean ok = true;
+				if (null == innerType) {
+					// don't know what to do
+					throw new DeserializationException("FIXME: Found null == innerType for output, is this the bug?");
+				} else if (innerType.equalsIgnoreCase("fromfile")) {
+					outdesc.setPath(path);
+					outdesc.setBinary(binary);
+				} else {
+					throw new DeserializationException("Problem reading output port: unknown innerType '" + innerType + "'");
+				}
+				if (ok) {
+					getOutputs().put(Tools.sanitiseName(name), outdesc);
+				}
+			} else if (type.equalsIgnoreCase("rte") || type.equalsIgnoreCase("re")) {
+				getREs().add(new RuntimeEnvironmentConstraint(name, cur.getAttributeValue("relation")));
+			} else if (type.equalsIgnoreCase("group")) {
+				group = name;
+			} else if (type.equalsIgnoreCase("test")) {
+				test_local = cur.getAttributeValue("local");
+			} else if (type.equalsIgnoreCase("icon")) {
+				icon_url = cur.getAttributeValue("url");
+			} else if (type.equalsIgnoreCase("queue")) {
+				for (Object child_ob : cur.getChildren()) {
+					Element child = (Element) child_ob;
+					if (child.getName().equalsIgnoreCase("prefer"))
+						getQueue_preferred().add(child.getAttributeValue("url"));
+					else if (child.getName().equalsIgnoreCase("deny"))
+						getQueue_deny().add(child.getAttributeValue("url"));
+					else
+						throw new DeserializationException("Error while reading usecase " + this.getUsecaseid() + ": invalid queue entry");
+				}
+			} else if (type.equalsIgnoreCase("command")) {
+				// i like to have the ability to inject complete shell script
+				// fragments into the use case,
+				// so this should be replace and should allow multiple lines
+				if ((getCommand() != null) && !getCommand().isEmpty()) {
+					throw new DeserializationException("You have specified both command attribute and command tag.");
+				}
+				setCommand(cur.getText());
+			} else if (type.equalsIgnoreCase("validReturnCodes")) {
+					String codeString = cur.getAttributeValue("codes");
+					if (codeString != null) {
+						setReturnCodesAsText(codeString);
+					}
+			}
+			else {
+				throw new DeserializationException("Unexpected and uninterpreted attribute " + type);
+			}
+		}
+	}
+
+	private void fillInputDescription(ScriptInput fillMe, boolean binary, boolean forceCopy, String innerType, String tag, String path) throws DeserializationException {
+		fillMe.setBinary(binary);
+		fillMe.setForceCopy(forceCopy);
+		if (null == innerType) {
+			// don't know what to do
+			throw new DeserializationException("FIXME: Found null == innerType for input, is this the bug?");
+		} else if (innerType.equalsIgnoreCase("replace")) {
+			fillMe.setTag(tag);
+			fillMe.setTempFile(false);
+			fillMe.setFile(false);
+			getTags().add(tag);
+		} else if (innerType.equalsIgnoreCase("tempfile")) {
+			fillMe.setTag(tag);
+			fillMe.setTempFile(true);
+			fillMe.setFile(false);
+			getTags().add(tag);
+		} else if (innerType.equalsIgnoreCase("file")) {
+			fillMe.setTag(path);
+			fillMe.setTempFile(false);
+			fillMe.setFile(true);
+		} else {
+			throw new DeserializationException("Problem reading input port: unknown innerType '" + innerType + "'");
+		}
+	}
+
+	/**
+	 * returns icon that is referenced in use case description
+	 */
+	public ImageIcon getImageIcon() {
+		if (null == icon_url) return null;
+		try {
+			URL u = new URL(icon_url);
+			return new ImageIcon(u, getUsecaseid());
+		} catch (Exception e) {
+			logger.error(e);
+			return null;
+		}
+	}
+
+	/**
+	 * String representation of the use case. It also contains interesting
+	 * information on the availability of resources in the grid to actually
+	 * execute that workflow element.
+	 *
+	 * @return String
+	 */
+	@Override
+	public String toString() {
+		List<String> hlp = new ArrayList<String>();
+		hlp.add("usecaseid: " + getUsecaseid());
+		hlp.add("description: " + getDescription());
+		hlp.add("group: " + group);
+		hlp.add("test: " + test_local);
+		hlp.add("tags: " + getTags());
+		for (Map.Entry<String, ScriptInput> cur : getInputs().entrySet()) {
+			hlp.add(">" + cur.getKey() + ">: " + cur.getValue().toString());
+		}
+		for (Map.Entry<String, ScriptOutput> cur : getOutputs().entrySet()) {
+			hlp.add("<" + cur.getKey() + "<: " + cur.getValue().toString());
+		}
+		hlp.add("RE: " + getREs().toString());
+		hlp.add("preferred queues: " + getQueue_preferred());
+		hlp.add("denied queues: " + getQueue_deny());
+		String tos = super.toString() + "[";
+		for (int i = 0; i < hlp.size(); i++) {
+			if (i != 0)
+				tos += ", ";
+			tos += hlp.get(i);
+		}
+		return tos + " ]";
+	}
+
+	/**
+	 * hajo's test just pass an url or file url to an xml file
+	 *
+	 * @throws IOException
+	 * @throws MalformedURLException
+	 * @throws DeserializationException
+	 */
+	public static void main(String[] argv) throws MalformedURLException, IOException, DeserializationException {
+		UseCaseDescription d = new UseCaseDescription(new URL(argv[0]).openStream());
+		logger.info(d.getCommand());
+	}
+
+	/**
+	 * @param command the command to set
+	 */
+	@ConfigurationProperty(name = "command", label = "Command", description="What is actually executed on the shell")
+	public void setCommand(String command) {
+		this.command = command;
+	}
+
+	/**
+	 * @param description the description to set
+	 */
+	@ConfigurationProperty(name = "description", label = "Description", description="Textual description of the tool", required=false, uri="http://purl.org/dc/elements/1.1/description")
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	/**
+	 * @return the description
+	 */
+	public String getDescription() {
+		return description;
+	}
+
+	/**
+	 * @param executionTimeoutInSeconds the executionTimeoutInSeconds to set
+	 */
+	@ConfigurationProperty(name = "executionTimeoutInSeconds", label = "Execution Timeout In Seconds")
+	public void setExecutionTimeoutInSeconds(int executionTimeoutInSeconds) {
+		this.executionTimeoutInSeconds = executionTimeoutInSeconds;
+	}
+
+	/**
+	 * @return the executionTimeoutInSeconds
+	 */
+	public int getExecutionTimeoutInSeconds() {
+		return executionTimeoutInSeconds;
+	}
+
+	/**
+	 * @param inputs the inputs to set
+	 */
+	public void setInputs(Map<String, ScriptInput> inputs) {
+		this.inputs = inputs;
+	}
+
+	@ConfigurationProperty(name = "inputs", label = "Inputs", required=false)
+	public void setInputs(Set<InputMap> inputs) {
+		if (inputs != null) {
+			this.inputs = new HashMap<String, ScriptInput>();
+			for (InputMap inputMap : inputs) {
+				this.inputs.put(inputMap.getPort(), inputMap.getInput());
+			}
+		} else {
+			this.inputs = null;
+		}
+	}
+
+	/**
+	 * @return the inputs
+	 */
+	public Map<String, ScriptInput> getInputs() {
+		if (inputs == null) {
+			inputs = new HashMap<String, ScriptInput>();
+		}
+		return inputs;
+	}
+
+	/**
+	 * @param outputs the outputs to set
+	 */
+	public void setOutputs(Map<String, ScriptOutput> outputs) {
+		this.outputs = outputs;
+	}
+
+	@ConfigurationProperty(name = "outputs", label = "Outputs", required=false)
+	public void setOutputs(Set<OutputMap> outputs) {
+		if (outputs != null) {
+			this.outputs = new HashMap<String, ScriptOutput>();
+			for (OutputMap outputMap : outputs) {
+				this.outputs.put(outputMap.getPort(), outputMap.getOutput());
+			}
+		} else {
+			this.outputs = null;
+		}
+	}
+
+	/**
+	 * @return the outputs
+	 */
+	public Map<String, ScriptOutput> getOutputs() {
+		if (outputs == null) {
+			outputs = new HashMap<String, ScriptOutput>();
+		}
+		return outputs;
+	}
+
+	/**
+	 * @param preparingTimeoutInSeconds the preparingTimeoutInSeconds to set
+	 */
+	@ConfigurationProperty(name = "preparingTimeoutInSeconds", label = "Preparing Timeout In Seconds")
+	public void setPreparingTimeoutInSeconds(int preparingTimeoutInSeconds) {
+		this.preparingTimeoutInSeconds = preparingTimeoutInSeconds;
+	}
+
+	/**
+	 * @return the preparingTimeoutInSeconds
+	 */
+	public int getPreparingTimeoutInSeconds() {
+		return preparingTimeoutInSeconds;
+	}
+
+	/**
+	 * @param queue_deny the queue_deny to set
+	 */
+	public void setQueue_deny(ArrayList<String> queue_deny) {
+		this.queue_deny = queue_deny;
+	}
+
+	/**
+	 * @return the queue_deny
+	 */
+	public ArrayList<String> getQueue_deny() {
+		if (queue_deny == null) {
+			queue_deny = new ArrayList<String>();
+		}
+		return queue_deny;
+	}
+
+	/**
+	 * @param queue_preferred the queue_preferred to set
+	 */
+	public void setQueue_preferred(ArrayList<String> queue_preferred) {
+		this.queue_preferred = queue_preferred;
+	}
+
+	/**
+	 * @return the queue_preferred
+	 */
+	public ArrayList<String> getQueue_preferred() {
+		if (queue_preferred == null) {
+			queue_preferred = new ArrayList<String>();
+		}
+		return queue_preferred;
+	}
+
+	/**
+	 * @param rEs the rEs to set
+	 */
+	public void setREs(List<RuntimeEnvironmentConstraint> rEs) {
+		REs = rEs;
+	}
+
+	/**
+	 * @return the rEs
+	 */
+	public List<RuntimeEnvironmentConstraint> getREs() {
+		if (REs == null) {
+			REs = new ArrayList<RuntimeEnvironmentConstraint>();
+		}
+		return REs;
+	}
+
+	/**
+	 * @param static_inputs the static_inputs to set
+	 */
+	@ConfigurationProperty(name = "staticInputs", label = "Static Inputs", ordering=OrderPolicy.NON_ORDERED, required=false)
+	public void setStatic_inputs(List<ScriptInputStatic> static_inputs) {
+		this.static_inputs = static_inputs;
+	}
+
+	/**
+	 * @return the static_inputs
+	 */
+	public List<ScriptInputStatic> getStatic_inputs() {
+		if (static_inputs == null) {
+			static_inputs = new ArrayList<ScriptInputStatic>();
+		}
+		return static_inputs;
+	}
+
+	/**
+	 * @param tags the tags to set
+	 */
+	public void setTags(List<String> tags) {
+		this.tags = tags;
+	}
+
+	/**
+	 * @return the tags
+	 */
+	public List<String> getTags() {
+		if (tags == null) {
+			tags = new ArrayList<String>();
+		}
+		return tags;
+	}
+
+	/**
+	 * @param usecaseid the usecaseid to set
+	 */
+	@ConfigurationProperty(name = "usecaseid", label = "Title", uri="http://purl.org/dc/elements/1.1/title", required=false)
+	public void setUsecaseid(String usecaseid) {
+		this.usecaseid = usecaseid;
+	}
+
+	/**
+	 * @return the usecaseid
+	 */
+	public String getUsecaseid() {
+		return usecaseid;
+	}
+
+	public boolean isIncludeStdIn() {
+		return includeStdIn;
+	}
+
+	@ConfigurationProperty(name = "includeStdIn", label = "Include STDIN")
+	public void setIncludeStdIn(boolean includeStdIn) {
+		this.includeStdIn = includeStdIn;
+	}
+
+	public boolean isIncludeStdOut() {
+		return includeStdOut;
+	}
+
+	@ConfigurationProperty(name = "includeStdOut", label = "Include STDOUT")
+	public void setIncludeStdOut(boolean includeStdOut) {
+		this.includeStdOut = includeStdOut;
+	}
+
+	public boolean isIncludeStdErr() {
+		return includeStdErr;
+	}
+
+	@ConfigurationProperty(name = "includeStdErr", label = "Include STDERR")
+	public void setIncludeStdErr(boolean includeStdErr) {
+		this.includeStdErr = includeStdErr;
+	}
+
+	/**
+	 * @return the validReturnCodes
+	 */
+	public List<Integer> getValidReturnCodes() {
+		if (validReturnCodes == null) {
+			validReturnCodes = new ArrayList<Integer>();
+		}
+		if (validReturnCodes.isEmpty()) {
+			validReturnCodes.add(0);
+		}
+		return validReturnCodes;
+	}
+
+	/**
+	 * @param validReturnCodes the validReturnCodes to set
+	 */
+	public void setValidReturnCodes(List<Integer> validReturnCodes) {
+		this.validReturnCodes = validReturnCodes;
+	}
+
+	public String getReturnCodesAsText() {
+		return StringUtils.join(getValidReturnCodes(), ",");
+	}
+
+	public void setReturnCodesAsText(String text) {
+		if (getValidReturnCodes() == null) {
+			validReturnCodes = new ArrayList<Integer>();
+		}
+		validReturnCodes.clear();
+		String[] codes = text.split(",");
+		for (String code : codes) {
+			try {
+				Integer codeInt = new Integer(code);
+				if (!validReturnCodes.contains(codeInt)) {
+					validReturnCodes.add(codeInt);
+				}
+			}
+			catch (NumberFormatException e) {
+				logger.error(e);
+			}
+		}
+		if (validReturnCodes.isEmpty()) {
+			validReturnCodes.add(0);
+		}
+		Collections.sort(validReturnCodes);
+	}
+
+	/**
+	 * @return the group
+	 */
+	public String getGroup() {
+		return group;
+	}
+
+	/**
+	 * @param group the group to set
+	 */
+	public void setGroup(String group) {
+		this.group = group;
+	}
+
+	/**
+	 * @return the icon_url
+	 */
+	public String getIcon_url() {
+		return icon_url;
+	}
+
+	@ConfigurationBean(uri = ExternalToolActivity.URI + "#OutputMap")
+	public static class OutputMap {
+		private String port;
+
+		private ScriptOutput output;
+
+		public String getPort() {
+			return port;
+		}
+
+		@ConfigurationProperty(name = "port", label = "Port")
+		public void setPort(String port) {
+			this.port = port;
+		}
+
+		public ScriptOutput getOutput() {
+			return output;
+		}
+
+		@ConfigurationProperty(name = "output", label = "Output")
+		public void setOutput(ScriptOutput output) {
+			this.output = output;
+		}
+	}
+
+	@ConfigurationBean(uri = ExternalToolActivity.URI + "#InputMap")
+	public static class InputMap {
+		private String port;
+
+		private ScriptInputUser input;
+
+		public String getPort() {
+			return port;
+		}
+
+		@ConfigurationProperty(name = "port", label = "Port")
+		public void setPort(String port) {
+			this.port = port;
+		}
+
+		public ScriptInputUser getInput() {
+			return input;
+		}
+
+		@ConfigurationProperty(name = "input", label = "Input")
+		public void setInput(ScriptInputUser input) {
+			this.input = input;
+		}
+	}
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseEnumeration.java
----------------------------------------------------------------------
diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseEnumeration.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseEnumeration.java
new file mode 100644
index 0000000..ea51c7b
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/UseCaseEnumeration.java
@@ -0,0 +1,114 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.sf.taverna.t2.workflowmodel.serialization.DeserializationException;
+
+import org.apache.log4j.Logger;
+import org.jdom.Document;
+import org.jdom.Element;
+import org.jdom.JDOMException;
+import org.jdom.input.SAXBuilder;
+
+public class UseCaseEnumeration {
+
+	private static Logger logger = Logger.getLogger(UseCaseEnumeration.class);
+
+	public static List<UseCaseDescription> readDescriptionsFromUrl(String xmlFileUrl) throws IOException {
+
+		List<UseCaseDescription> ret = new ArrayList<UseCaseDescription>();
+		URLConnection con = null;
+		try {
+			URL url = new URL(xmlFileUrl);
+
+			con = url.openConnection();
+			con.setConnectTimeout(4000);
+			ret = readDescriptionsFromStream(con.getInputStream());
+			
+		} catch (IOException ioe) {
+			logger.error("Problem retrieving from " + xmlFileUrl);
+			logger.error(ioe);
+			throw ioe;
+		}
+		finally {
+
+		}
+
+		return ret;
+
+	}
+	
+	public static List<UseCaseDescription> readDescriptionsFromStream(InputStream is) {
+		
+		List<UseCaseDescription> ret = new ArrayList<UseCaseDescription>();
+
+		SAXBuilder builder = new SAXBuilder();
+		Document doc = null;
+		try {
+			doc = builder.build(is);
+			is.close();
+		} catch (JDOMException e1) {
+			logger.error(e1);
+			return ret;
+		} catch (IOException e1) {
+			logger.error(e1);
+			return ret;
+		} finally {
+			try {
+				is.close();
+			} catch (IOException e) {
+				logger.error(e);
+			}
+		}
+
+		Element usecases = doc.getRootElement();
+		for (Object ochild : usecases.getChildren()) {
+			Element child = (Element) ochild;
+			if (child.getName().equalsIgnoreCase("program")) {
+					try {
+						ret.add(new UseCaseDescription(child));
+					} catch (DeserializationException e) {
+						logger.error(e);
+					}
+			}
+		}
+		return ret;
+	}
+
+	public static UseCaseDescription readDescriptionFromUrl(
+			String repositoryUrl, String id) throws IOException {
+		List<UseCaseDescription> descriptions = readDescriptionsFromUrl(repositoryUrl);
+		for (UseCaseDescription usecase : descriptions) {
+			if (usecase.getUsecaseid().equals(id)) {
+				return usecase;
+			}
+		}
+		return null;
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/AskUserForPw.java
----------------------------------------------------------------------
diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/AskUserForPw.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/AskUserForPw.java
new file mode 100644
index 0000000..9c54b1d
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/AskUserForPw.java
@@ -0,0 +1,34 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases.invocation;
+
+public interface AskUserForPw {
+
+	// we will try keyfile first
+	public String getKeyfile();
+	public String getPassphrase();
+
+	// then username+password
+	public String getUsername();
+	public String getPassword();
+
+	public void authenticationSucceeded();
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/InvocationException.java
----------------------------------------------------------------------
diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/InvocationException.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/InvocationException.java
new file mode 100644
index 0000000..d714ab1
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/InvocationException.java
@@ -0,0 +1,25 @@
+/**
+ * 
+ */
+package de.uni_luebeck.inb.knowarc.usecases.invocation;
+
+/**
+ * @author alanrw
+ *
+ */
+public class InvocationException extends Exception {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 437316164959631591L;
+
+	public InvocationException(String string) {
+		super(string);
+	}
+	
+	public InvocationException(Exception e) {
+		super(e);
+	}
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-taverna-common-activities/blob/390c286b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/UseCaseInvocation.java
----------------------------------------------------------------------
diff --git a/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/UseCaseInvocation.java b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/UseCaseInvocation.java
new file mode 100644
index 0000000..6154d05
--- /dev/null
+++ b/taverna-external-tool-activity/src/main/java/de/uni_luebeck/inb/knowarc/usecases/invocation/UseCaseInvocation.java
@@ -0,0 +1,324 @@
+/* Part of the KnowARC Janitor Use-case processor for taverna
+ *  written 2007-2010 by Hajo Nils Krabbenhoeft and Steffen Moeller
+ *  University of Luebeck, Institute for Neuro- and Bioinformatics
+ *  University of Luebeck, Institute for Dermatolgy
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This package is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this package; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+package de.uni_luebeck.inb.knowarc.usecases.invocation;
+
+import java.io.BufferedWriter;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.commons.io.IOUtils;
+
+import net.sf.taverna.t2.invocation.InvocationContext;
+import net.sf.taverna.t2.reference.ExternalReferenceSPI;
+import net.sf.taverna.t2.reference.Identified;
+import net.sf.taverna.t2.reference.IdentifiedList;
+import net.sf.taverna.t2.reference.ReferenceService;
+import net.sf.taverna.t2.reference.ReferenceServiceException;
+import net.sf.taverna.t2.reference.ReferenceSet;
+import net.sf.taverna.t2.reference.T2Reference;
+import net.sf.taverna.t2.reference.impl.external.object.InlineByteArrayReferenceBuilder;
+import net.sf.taverna.t2.reference.impl.external.object.InlineStringReferenceBuilder;
+import de.uni_luebeck.inb.knowarc.usecases.ScriptInput;
+import de.uni_luebeck.inb.knowarc.usecases.ScriptInputStatic;
+import de.uni_luebeck.inb.knowarc.usecases.ScriptInputUser;
+import de.uni_luebeck.inb.knowarc.usecases.UseCaseDescription;
+
+/**
+ * An abstraction of various forms to bring job using the software that is
+ * referenced as a use case towards their execution.
+ * 
+ * @author Hajo Nils Krabbenhoeft with some contribution by
+ * @author Steffen Moeller
+ */
+public abstract class UseCaseInvocation {
+	
+	private String runId;
+	
+	
+	protected static String getActualOsCommand(String osCommand, String pathToOriginal,
+			String targetName, String pathTarget) {
+				String actualOsCommand = osCommand;
+				actualOsCommand = actualOsCommand.replace("%%PATH_TO_ORIGINAL%%", pathToOriginal);
+				actualOsCommand = actualOsCommand.replace("%%TARGET_NAME%%", targetName);
+				actualOsCommand = actualOsCommand.replace("%%PATH_TO_TARGET%%", pathTarget);
+				return actualOsCommand;
+			}
+
+	protected UseCaseDescription usecase;
+	protected final HashMap<String, String> tags = new HashMap<String, String>();
+	protected int nTempFiles = 0;
+	private static int submissionID = 0;
+	protected static InlineByteArrayReferenceBuilder inlineByteArrayReferenceBuilder = new InlineByteArrayReferenceBuilder();
+	protected static InlineStringReferenceBuilder inlineStringReferenceBuilder = new InlineStringReferenceBuilder();
+	private InvocationContext invocationContext;
+	private boolean retrieveData;
+	
+	/*
+	 * get the class of the data we expect for a given input
+	 */
+	@SuppressWarnings("unchecked")
+	public Class getType(String inputName) {
+		if (!usecase.getInputs().containsKey(inputName))
+			return null;
+		ScriptInputUser input = (ScriptInputUser) usecase.getInputs().get(inputName);
+		if (input.isList()) {
+			if (input.isBinary())
+				return List.class;
+			else
+				return List.class;
+		} else {
+			if (input.isBinary())
+				return byte[].class;
+			else
+				return String.class;
+		}
+	}
+
+	/*
+	 * get a list of all the input port names
+	 */
+	public Set<String> getInputs() {
+		return usecase.getInputs().keySet();
+	}
+
+
+	/*
+	 * get a id, incremented with each job. thus, this should be thread-wide
+	 * unique
+	 */
+	public synchronized int getSubmissionID() {
+		return submissionID++;
+	}
+
+	/*
+	 * set the data for the input port with given name
+	 */
+	@SuppressWarnings("unchecked")
+	public void setInput(String inputName, ReferenceService referenceService, T2Reference t2Reference) throws InvocationException {
+		if (t2Reference == null) {
+			throw new InvocationException("No input specified for " + inputName);
+		}
+		ScriptInputUser input = (ScriptInputUser) usecase.getInputs().get(inputName);
+		if (input.isList()) {
+			IdentifiedList<T2Reference> listOfReferences = (IdentifiedList<T2Reference>) referenceService
+					.getListService().getList(t2Reference);
+
+			if (!input.isConcatenate()) {
+				// this is a list input (not concatenated)
+				// so write every element to its own temporary file
+				// and create a filelist file
+
+				// we need to write the list elements to temporary files
+				ScriptInputUser listElementTemp = new ScriptInputUser();
+				listElementTemp.setBinary(input.isBinary());
+				listElementTemp.setTempFile(true);
+
+				String lineEndChar = "\n";
+				if (!input.isFile() && !input.isTempFile()) {
+					lineEndChar = " ";
+				}
+
+				String listFileContent = "";
+				String filenamesFileContent = "";
+				// create a list of all temp file names
+				for (T2Reference cur : listOfReferences) {
+					String tmp = setOneInput(referenceService, cur,
+							listElementTemp);
+					listFileContent += tmp + lineEndChar;
+					int ind = tmp.lastIndexOf('/');
+					if (ind == -1) {
+						ind = tmp.lastIndexOf('\\');
+					}
+					if (ind != -1) {
+						tmp = tmp.substring(ind + 1);
+					}
+					filenamesFileContent += tmp + lineEndChar;
+				}
+
+				// how do we want the listfile to be stored?
+				ScriptInputUser listFile = new ScriptInputUser();
+				listFile.setBinary(false); // since its a list file
+				listFile.setFile(input.isFile());
+				listFile.setTempFile(input.isTempFile());
+				listFile.setTag(input.getTag());
+				T2Reference listFileContentReference = referenceService
+						.register(listFileContent, 0, true, invocationContext);
+
+				tags.put(listFile.getTag(), setOneInput(referenceService,
+						listFileContentReference, listFile));
+
+				listFile.setTag(input.getTag() + "_NAMES");
+				T2Reference filenamesFileContentReference = referenceService
+						.register(filenamesFileContent, 0, true, null);
+				tags.put(listFile.getTag(), setOneInput(referenceService,
+						filenamesFileContentReference, listFile));
+			} else {
+				try {
+					// first, concatenate all data
+					if (input.isBinary()) {
+						ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+						BufferedWriter outputWriter = new BufferedWriter(
+								new OutputStreamWriter(outputStream));
+						for (T2Reference cur : listOfReferences) {
+							InputStreamReader inputReader = new InputStreamReader(
+									getAsStream(referenceService, cur));
+							IOUtils.copyLarge(inputReader, outputWriter);
+							inputReader.close();
+						}
+						outputWriter.close();
+						T2Reference binaryReference = referenceService
+								.register(outputStream.toByteArray(), 0, true,
+										invocationContext);
+						tags.put(input.getTag(), setOneInput(referenceService,
+								binaryReference, input));
+					} else {
+						ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+						BufferedWriter outputWriter = new BufferedWriter(
+								new OutputStreamWriter(outputStream));
+						for (T2Reference cur : listOfReferences) {
+							InputStreamReader inputReader = new InputStreamReader(
+									getAsStream(referenceService, cur));
+							IOUtils.copyLarge(inputReader, outputWriter);
+							outputWriter.write(" ");
+							inputReader.close();
+						}
+						outputWriter.close();
+						T2Reference binaryReference = referenceService
+								.register(outputStream.toByteArray(), 0, true,
+										invocationContext);
+						tags.put(input.getTag(), setOneInput(referenceService,
+								binaryReference, input));
+					}
+				} catch (IOException e) {
+					throw new InvocationException(e);
+				}
+			}
+		} else {
+			tags.put(input.getTag(), setOneInput(referenceService, t2Reference,
+					input));
+		}
+	}
+
+	/*
+	 * submit a grid job and wait for it to finish, then get the result as
+	 * on-demand downloads or directly as data (in case of local execution)
+	 */
+	public HashMap<String, Object> Submit(ReferenceService referenceService) throws InvocationException {
+		submit_generate_job(referenceService);
+		return submit_wait_fetch_results(referenceService);
+	}
+
+	/*
+	 * just submit the job. useful if you want to wait for it to finish later on
+	 * 
+	 * Can the statics be made more static?
+	 */
+	public void submit_generate_job(ReferenceService referenceService) throws InvocationException {
+		for (ScriptInputStatic input : usecase.getStatic_inputs()) {
+			T2Reference ref;
+			if (input.getUrl() != null) {
+				// Does this work OK with binary
+				try {
+					ref = referenceService.register(new URL(input.getUrl()), 0, true, null);
+				} catch (ReferenceServiceException e) {
+					throw new InvocationException(e);
+				} catch (MalformedURLException e) {
+					throw new InvocationException(e);
+				}
+			} else {
+				ref = referenceService.register((String) input.getContent(), 0, true, null);
+			}
+				tags.put(input.getTag(), setOneInput(referenceService, ref, input));
+			
+		}
+		submit_generate_job_inner();
+	}
+
+	protected abstract void submit_generate_job_inner() throws InvocationException;
+
+	/*
+	 * wait for a submitted job to finish and fetch the results
+	 */
+	public abstract HashMap<String, Object> submit_wait_fetch_results(ReferenceService referenceService) throws InvocationException;
+
+	public abstract String setOneInput(ReferenceService referenceService, T2Reference t2Reference, ScriptInput input) throws InvocationException;
+
+	protected InputStream getAsStream(ReferenceService referenceService, T2Reference t2Reference) {
+		Identified identified = referenceService.resolveIdentifier(t2Reference, null, null);
+		if (identified instanceof ReferenceSet) {
+			ExternalReferenceSPI ref = ((ReferenceSet) identified).getExternalReferences().iterator().next();
+			return ref.openStream(invocationContext);
+		}
+		return null;
+	}
+
+	public void setContext(InvocationContext context) {
+		this.invocationContext = context;
+		
+	}
+	
+	public InvocationContext getContext() {
+		return this.invocationContext;
+	}
+
+	public abstract void setStdIn(ReferenceService referenceService,
+			T2Reference t2Reference);
+
+	public abstract void rememberRun(String runId);
+
+	/**
+	 * @return the runId
+	 */
+	protected String getRunId() {
+		return runId;
+	}
+
+	/**
+	 * @param runId the runId to set
+	 */
+	protected void setRunId(String runId) {
+		this.runId = runId;
+	}
+
+	/**
+	 * @return the retrieveData
+	 */
+	protected boolean isRetrieveData() {
+		return retrieveData;
+	}
+
+	/**
+	 * @param retrieveData the retrieveData to set
+	 */
+	protected void setRetrieveData(boolean retrieveData) {
+		this.retrieveData = retrieveData;
+	}
+	
+
+}