Examples with SwitchMediator org.apache.synapse.mediators.filters.SwitchMediator used on opensource projects

Example 1 with SwitchMediator

use of org.apache.synapse.mediators.filters.SwitchMediator in project wso2-synapse by wso2.

the class MediatorTreeTraverseUtil method getMediatorReference.

/**
 * Returns mediator referece associated with position while traversing the mediator tree.
 *
 * @param synCfg      synapse configuration reference
 * @param seqMediator sequence mediator which traverse happens
 * @param position    array of tree nodes specifying position integer with respect to it's parent node
 *                    starting from the root parent.
 * @return Mediator reference
 */
public static Mediator getMediatorReference(SynapseConfiguration synCfg, Mediator seqMediator, int[] position) {
    Mediator current_mediator = null;
    for (int counter = 0; counter < position.length; counter++) {
        if (counter == 0) {
            int mediatorCount = ((AbstractListMediator) seqMediator).getList().size();
            int correctedPosition = getCorrectedPossition((AbstractListMediator) seqMediator, position[counter]);
            if (mediatorCount > correctedPosition) {
                current_mediator = ((AbstractListMediator) seqMediator).getChild(correctedPosition);
            } else {
                log.warn("Mediator position requested is larger than last index : " + position[counter]);
            }
        }
        if (current_mediator != null && counter != 0) {
            if (current_mediator instanceof InvokeMediator) {
                current_mediator = synCfg.getSequenceTemplate(((InvokeMediator) current_mediator).getTargetTemplate());
            } else if (current_mediator instanceof FilterMediator) {
                if (position[counter] == 0) {
                    if (((FilterMediator) current_mediator).getElseMediator() != null) {
                        current_mediator = ((FilterMediator) current_mediator).getElseMediator();
                    } else if (((FilterMediator) current_mediator).getElseKey() != null) {
                        current_mediator = synCfg.getSequence(((FilterMediator) current_mediator).getElseKey());
                    }
                    continue;
                } else if (position[counter] == 1) {
                    if (((FilterMediator) current_mediator).getThenKey() != null) {
                        current_mediator = synCfg.getSequence(((FilterMediator) current_mediator).getThenKey());
                    } else {
                        counter = counter + 1;
                        if (counter < position.length) {
                            int mediatorCount = ((AbstractListMediator) current_mediator).getList().size();
                            int correctedPosition = getCorrectedPossition((AbstractListMediator) current_mediator, position[counter]);
                            if (mediatorCount > correctedPosition) {
                                current_mediator = ((AbstractListMediator) current_mediator).getChild(correctedPosition);
                            } else {
                                log.warn("Mediator position requested is larger than last index : " + position[counter]);
                            }
                        }
                    }
                    continue;
                }
            } else if (current_mediator instanceof SwitchMediator) {
                if (position[counter] == 0) {
                    SwitchCase switchCase = ((SwitchMediator) current_mediator).getDefaultCase();
                    if (switchCase != null) {
                        current_mediator = switchCase.getCaseMediator();
                    } else {
                        current_mediator = null;
                    }
                } else {
                    SwitchCase switchCase = ((SwitchMediator) current_mediator).getCases().get(position[counter] - 1);
                    if (switchCase != null) {
                        current_mediator = switchCase.getCaseMediator();
                    } else {
                        current_mediator = null;
                    }
                }
                continue;
            } else if (current_mediator instanceof AggregateMediator) {
                if (((AggregateMediator) current_mediator).getOnCompleteSequence() != null) {
                    current_mediator = ((AggregateMediator) current_mediator).getOnCompleteSequence();
                } else if (((AggregateMediator) current_mediator).getOnCompleteSequenceRef() != null) {
                    current_mediator = synCfg.getSequence(((AggregateMediator) current_mediator).getOnCompleteSequenceRef());
                }
            } else if (current_mediator instanceof ForEachMediator) {
                if (((ForEachMediator) current_mediator).getSequence() != null) {
                    current_mediator = ((ForEachMediator) current_mediator).getSequence();
                } else if (((ForEachMediator) current_mediator).getSequenceRef() != null) {
                    current_mediator = synCfg.getSequence(((ForEachMediator) current_mediator).getSequenceRef());
                }
            } else if (current_mediator instanceof IterateMediator) {
                if (((IterateMediator) current_mediator).getTarget().getSequence() != null) {
                    current_mediator = ((IterateMediator) current_mediator).getTarget().getSequence();
                } else if (((IterateMediator) current_mediator).getTarget().getSequenceRef() != null) {
                    current_mediator = synCfg.getSequence(((IterateMediator) current_mediator).getTarget().getSequenceRef());
                }
            } else if (current_mediator instanceof CloneMediator) {
                if (((CloneMediator) current_mediator).getTargets().get(position[counter]).getSequence() != null) {
                    current_mediator = ((CloneMediator) current_mediator).getTargets().get(position[counter]).getSequence();
                } else if (((CloneMediator) current_mediator).getTargets().get(position[counter]).getSequenceRef() != null) {
                    current_mediator = synCfg.getSequence(((CloneMediator) current_mediator).getTargets().get(position[counter]).getSequenceRef());
                }
                continue;
            } else if (current_mediator.getType().equals("ThrottleMediator")) {
                current_mediator = ((EnclosedInlinedSequence) current_mediator).getInlineSequence(synCfg, position[counter]);
                continue;
            } else if (current_mediator.getType().equals("EntitlementMediator")) {
                current_mediator = ((EnclosedInlinedSequence) current_mediator).getInlineSequence(synCfg, position[counter]);
                continue;
            } else if (current_mediator.getType().equals("CacheMediator")) {
                current_mediator = ((EnclosedInlinedSequence) current_mediator).getInlineSequence(synCfg, 0);
            }
            if (current_mediator != null && (current_mediator instanceof AbstractListMediator)) {
                int mediatorCount = ((AbstractListMediator) current_mediator).getList().size();
                int correctedPosition = getCorrectedPossition((AbstractListMediator) current_mediator, position[counter]);
                if (mediatorCount > correctedPosition) {
                    current_mediator = ((AbstractListMediator) current_mediator).getChild(correctedPosition);
                } else {
                    log.warn("Mediator position requested is larger than last index : " + position[counter]);
                }
            } else {
                current_mediator = null;
                break;
            }
        }
    }
    return current_mediator;
}

Example 2 with SwitchMediator

use of org.apache.synapse.mediators.filters.SwitchMediator in project wso2-synapse by wso2.

the class SwitchMediatorFactory method createSpecificMediator.

public Mediator createSpecificMediator(OMElement elem, Properties properties) {
    SwitchMediator switchMediator = new SwitchMediator();
    OMAttribute source = elem.getAttribute(ATT_SOURCE);
    if (source == null) {
        String msg = "A 'source' XPath attribute is required for a switch mediator";
        log.error(msg);
        throw new SynapseException(msg);
    } else {
        try {
            switchMediator.setSource(SynapsePathFactory.getSynapsePath(elem, ATT_SOURCE));
        } catch (JaxenException e) {
            String msg = "Invalid XPath for attribute 'source' : " + source.getAttributeValue();
            log.error(msg);
            throw new SynapseException(msg);
        }
    }
    // after successfully creating the mediator
    // set its common attributes such as tracing etc
    processAuditStatus(switchMediator, elem);
    Iterator iter = elem.getChildrenWithName(CASE_Q);
    while (iter.hasNext()) {
        OMElement caseElem = (OMElement) iter.next();
        SwitchCase aCase = new SwitchCase();
        OMAttribute regex = caseElem.getAttribute(ATT_REGEX);
        if (regex == null) {
            String msg = "The 'regex' attribute is required for a switch case definition";
            log.error(msg);
            throw new SynapseException(msg);
        }
        try {
            aCase.setRegex(Pattern.compile(regex.getAttributeValue()));
        } catch (PatternSyntaxException pse) {
            String msg = "Invalid Regular Expression for attribute 'regex' : " + regex.getAttributeValue();
            log.error(msg);
            throw new SynapseException(msg);
        }
        aCase.setCaseMediator(AnonymousListMediatorFactory.createAnonymousListMediator(caseElem, properties));
        switchMediator.addCase(aCase);
    }
    iter = elem.getChildrenWithName(DEFAULT_Q);
    while (iter.hasNext()) {
        SwitchCase aCase = new SwitchCase();
        aCase.setCaseMediator(AnonymousListMediatorFactory.createAnonymousListMediator((OMElement) iter.next(), properties));
        switchMediator.setDefaultCase(aCase);
        // add only the *first* default if multiple are specified, ignore rest if any
        break;
    }
    return switchMediator;
}

Example 3 with SwitchMediator

use of org.apache.synapse.mediators.filters.SwitchMediator in project wso2-synapse by wso2.

the class SwitchMediatorSerializer method serializeSpecificMediator.

public OMElement serializeSpecificMediator(Mediator m) {
    if (!(m instanceof SwitchMediator)) {
        handleException("Unsupported mediator passed in for serialization : " + m.getType());
    }
    SwitchMediator mediator = (SwitchMediator) m;
    OMElement switchMed = fac.createOMElement("switch", synNS);
    saveTracingState(switchMed, mediator);
    if (mediator.getSource() != null) {
        SynapsePathSerializer.serializePath(mediator.getSource(), switchMed, "source");
    } else {
        handleException("Invalid switch mediator. Source required");
    }
    for (SwitchCase aCase : mediator.getCases()) {
        OMElement caseElem = fac.createOMElement("case", synNS);
        if (aCase.getRegex() != null) {
            caseElem.addAttribute(fac.createOMAttribute("regex", nullNS, aCase.getRegex().pattern()));
        } else {
            handleException("Invalid switch case. Regex required");
        }
        AnonymousListMediator caseMediator = aCase.getCaseMediator();
        if (caseMediator != null) {
            new AnonymousListMediatorSerializer().serializeMediator(caseElem, caseMediator);
            switchMed.addChild(caseElem);
        }
    }
    SwitchCase defaultCase = mediator.getDefaultCase();
    if (defaultCase != null) {
        OMElement caseDefaultElem = fac.createOMElement("default", synNS);
        AnonymousListMediator caseDefaultMediator = defaultCase.getCaseMediator();
        if (caseDefaultMediator != null) {
            new AnonymousListMediatorSerializer().serializeMediator(caseDefaultElem, caseDefaultMediator);
            switchMed.addChild(caseDefaultElem);
        }
    }
    return switchMed;
}