Example usage for javax.script Bindings get

Introduction

In this page you can find the example usage for javax.script Bindings get.

Prototype

public Object get(Object key);

Source Link

Document

Returns the value to which this map maps the specified key.

Usage

From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

public static Object[] createRowCopy(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {
    if (ArgList.length == 1) {
        try {/*from  w  w  w .ja va2s  .c o m*/
            int newSize = (int) Math.round((Double) ArgList[0]);

            Object scmO = actualObject.get("row");
            Object[] row = (Object[]) scmO; // TODO AKRETION ensure

            return RowDataUtil.createResizedCopy(row, newSize);
        } catch (Exception e) {
            throw new RuntimeException("Unable to create a row copy: " + Const.CR + e.toString());
        }
    } else {
        throw new RuntimeException(
                "The function call createRowCopy requires a single arguments : the new size of the row");
    }
}

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From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

@SuppressWarnings("unused")
public static Object fireToDB(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {

    Object oRC = new Object();
    if (ArgList.length == 2) {
        try {/*from   www  .  j a v a2  s  . c o  m*/
            Object scmO = actualObject.get("_step_");
            Script scm = (Script) scmO;
            String strDBName = (String) ArgList[0];
            String strSQL = (String) ArgList[1];
            DatabaseMeta ci = DatabaseMeta.findDatabase(scm.getTransMeta().getDatabases(), strDBName);
            if (ci == null) {
                throw new RuntimeException("Database connection not found: " + strDBName);
            }
            ci.shareVariablesWith(scm);

            Database db = new Database(scm, ci);
            db.setQueryLimit(0);
            try {
                if (scm.getTransMeta().isUsingUniqueConnections()) {
                    synchronized (scm.getTrans()) {
                        db.connect(scm.getTrans().getTransactionId(), scm.getPartitionID());
                    }
                } else {
                    db.connect(scm.getPartitionID());
                }

                ResultSet rs = db.openQuery(strSQL);
                ResultSetMetaData resultSetMetaData = rs.getMetaData();
                int columnCount = resultSetMetaData.getColumnCount();
                if (rs != null) {
                    List<Object[]> list = new ArrayList<Object[]>();
                    while (rs.next()) {
                        Object[] objRow = new Object[columnCount];
                        for (int i = 0; i < columnCount; i++) {
                            objRow[i] = rs.getObject(i + 1);
                        }
                        list.add(objRow);
                    }
                    Object[][] resultArr = new Object[list.size()][];
                    list.toArray(resultArr);
                    db.disconnect();
                    return resultArr;
                }
            } catch (Exception er) {
                throw new RuntimeException(er.toString());
            }
        } catch (Exception e) {
            throw new RuntimeException(e.toString());
        }
    } else {
        throw new RuntimeException("The function call fireToDB requires 2 arguments.");
    }
    return oRC;
}

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From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

public static String getVariable(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {
    String sRC = "";
    String sArg1 = "";
    String sArg2 = "";
    if (ArgList.length == 2) {
        try {/*from  w  ww.j  a v  a2 s  .com*/
            Object scmo = actualObject.get("_step_");
            Object scmO = scmo;

            if (scmO instanceof Script) {
                Script scm = (Script) scmO;

                sArg1 = (String) ArgList[0];
                sArg2 = (String) ArgList[1];
                return scm.getVariable(sArg1, sArg2);
            } else {
                // running via the Test button in a dialog
                sArg2 = (String) ArgList[1];
                return sArg2;
            }
        } catch (Exception e) {
            sRC = "";
        }
    } else {
        throw new RuntimeException("The function call getVariable requires 2 arguments.");
    }
    return sRC;
}

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From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

public static void writeToLog(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {

    switch (ArgList.length) {
    case 1:/*  ww  w.j  av a 2 s  . c  o  m*/
        try {
            if (!isNull(ArgList) && !isUndefined(ArgList)) {
                Object scmO = actualObject.get("_step_");
                Script scm = (Script) scmO;
                String strMessage = (String) ArgList[0];
                scm.logDebug(strMessage);
            }
        } catch (Exception e) {
            // Ignore errors
        }
        break;
    case 2:
        try {
            if (!isNull(ArgList) && !isUndefined(ArgList)) {
                Object scmO = actualObject.get("_step_");
                Script scm = (Script) scmO;

                String strType = ((String) ArgList[0]).toLowerCase();
                String strMessage = (String) ArgList[1];
                if (strType.equals("b")) {
                    scm.logBasic(strMessage);
                } else if (strType.equals("d")) {
                    scm.logDebug(strMessage);
                } else if (strType.equals("l")) {
                    scm.logDetailed(strMessage);
                } else if (strType.equals("e")) {
                    scm.logError(strMessage);
                } else if (strType.equals("m")) {
                    scm.logMinimal(strMessage);
                } else if (strType.equals("r")) {
                    scm.logRowlevel(strMessage);
                }
            }
        } catch (Exception e) {
            // Ignore errors
        }
        break;
    default:
        throw new RuntimeException("The function call writeToLog requires 1 or 2 arguments.");
    }
}

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From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

public static void LoadScriptFromTab(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {
    try {// w  w w .  j  av  a  2  s . c  om
        for (int i = 0; i < ArgList.length; i++) { // don't worry about "undefined" arguments
            String strToLoad = (String) ArgList[i];
            String strScript = actualObject.get(strToLoad).toString();
            actualContext.eval(strScript, actualObject);
        }
    } catch (Exception e) {
        // System.out.println(e.toString());
    }
}

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From source file:org.pentaho.di.trans.steps.script.ScriptAddedFunctions.java

public static void setVariable(ScriptEngine actualContext, Bindings actualObject, Object[] ArgList,
        Object FunctionContext) {
    String sArg1 = "";
    String sArg2 = "";
    String sArg3 = "";
    if (ArgList.length == 3) {
        try {//from   ww  w  .j a  va  2s.co  m
            Object scmo = actualObject.get("_step_");
            Object scmO = scmo;
            if (scmO instanceof ScriptInterface) {
                ScriptInterface scm = (ScriptInterface) scmO;

                sArg1 = (String) ArgList[0];
                sArg2 = (String) ArgList[1];
                sArg3 = (String) ArgList[2];

                if ("s".equals(sArg3)) {
                    // System wide properties
                    System.setProperty(sArg1, sArg2);

                    // Set also all the way to the root as else we will take
                    // stale values
                    scm.setVariable(sArg1, sArg2);

                    VariableSpace parentSpace = scm.getParentVariableSpace();
                    while (parentSpace != null) {
                        parentSpace.setVariable(sArg1, sArg2);
                        parentSpace = parentSpace.getParentVariableSpace();
                    }
                } else if ("r".equals(sArg3)) {
                    // Upto the root... this should be the default.
                    scm.setVariable(sArg1, sArg2);

                    VariableSpace parentSpace = scm.getParentVariableSpace();
                    while (parentSpace != null) {
                        parentSpace.setVariable(sArg1, sArg2);
                        parentSpace = parentSpace.getParentVariableSpace();
                    }
                } else if ("p".equals(sArg3)) {
                    // Upto the parent
                    scm.setVariable(sArg1, sArg2);

                    VariableSpace parentSpace = scm.getParentVariableSpace();
                    if (parentSpace != null) {
                        parentSpace.setVariable(sArg1, sArg2);
                    }
                } else if ("g".equals(sArg3)) {
                    // Upto the grand parent
                    scm.setVariable(sArg1, sArg2);

                    VariableSpace parentSpace = scm.getParentVariableSpace();
                    if (parentSpace != null) {
                        parentSpace.setVariable(sArg1, sArg2);
                        VariableSpace grandParentSpace = parentSpace.getParentVariableSpace();
                        if (grandParentSpace != null) {
                            grandParentSpace.setVariable(sArg1, sArg2);
                        }
                    }
                } else {
                    throw new RuntimeException(
                            "The argument type of function call setVariable should either be \"s\", \"r\", \"p\", or \"g\".");
                }
            }

            // Else: Ignore for now... if we're executing via the Test Button

        } catch (Exception e) {
            throw new RuntimeException(e.toString());
        }
    } else {
        throw new RuntimeException("The function call setVariable requires 3 arguments.");
    }
}

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From source file:org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.java

@Override
public Traversal.Admin eval(final Bytecode bytecode, final Bindings bindings, final String traversalSource)
        throws ScriptException {
    // these validations occur before merging in bytecode bindings which will override existing ones. need to
    // extract the named traversalsource prior to that happening so that bytecode bindings can share the same
    // namespace as global bindings (e.g. traversalsources and graphs).
    if (traversalSource.equals(HIDDEN_G))
        throw new IllegalArgumentException(
                "The traversalSource cannot have the name " + HIDDEN_G + " - it is reserved");

    if (bindings.containsKey(HIDDEN_G))
        throw new IllegalArgumentException("Bindings cannot include " + HIDDEN_G + " - it is reserved");

    if (!bindings.containsKey(traversalSource))
        throw new IllegalArgumentException(
                "The bindings available to the ScriptEngine do not contain a traversalSource named: "
                        + traversalSource);

    final Object b = bindings.get(traversalSource);
    if (!(b instanceof TraversalSource))
        throw new IllegalArgumentException(traversalSource + " is of type " + b.getClass().getSimpleName()
                + " and is not an instance of TraversalSource");

    final Bindings inner = new SimpleBindings();
    inner.putAll(bindings);/*from   www  . jav a2 s  .  co m*/
    inner.putAll(bytecode.getBindings());
    inner.put(HIDDEN_G, b);

    return (Traversal.Admin) this.eval(GroovyTranslator.of(HIDDEN_G).translate(bytecode), inner);
}

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