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| package org.apache.hivemind.impl; |
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| |
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| import java.util.ArrayList; |
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| import java.util.HashMap; |
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| import java.util.List; |
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| import java.util.Map; |
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| |
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| import org.apache.hivemind.Element; |
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| import org.apache.hivemind.ErrorLog; |
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| import org.apache.hivemind.internal.Module; |
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| import org.apache.hivemind.schema.ElementModel; |
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| import org.apache.hivemind.schema.Schema; |
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| import org.apache.hivemind.schema.SchemaProcessor; |
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| import org.apache.hivemind.schema.Translator; |
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| public final class SchemaProcessorImpl implements SchemaProcessor |
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| { |
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| private ErrorLog _errorLog; |
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| |
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| private Schema _schema; |
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| private List _elements = new ArrayList(); |
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| |
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| private boolean _canElementsBeMapped; |
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| |
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| private Map _mappedElements = new HashMap(); |
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| |
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| private List _stack = new ArrayList(); |
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| |
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| private Module _contributingModule; |
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| private Map _elementMap = new HashMap(); |
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| private List _elementStack = new ArrayList(); |
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| |
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1040
| public SchemaProcessorImpl(ErrorLog errorLog, Schema schema)
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| { |
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1040
| _errorLog = errorLog;
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1040
| _schema = schema;
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| _stack.add(this);
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| if (_schema != null)
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| { |
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| List l = _schema.getElementModel();
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| |
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| int count = l.size();
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| for (int i = 0; i < count; i++)
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| { |
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| ElementModel model = (ElementModel) l.get(i);
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| _elementMap.put(model.getElementName(), new SchemaElement(this, model));
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| } |
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| _canElementsBeMapped = schema.canInstancesBeKeyed();
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| } |
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| } |
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| public void addElement(Object element)
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| { |
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| _elements.add(element);
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3243
| if (_canElementsBeMapped)
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| { |
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| Element currentElement = peekElement();
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| String keyAttribute = _activeElement.getKeyAttribute();
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| String expandedKey = getContributingModule().expandSymbols(
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| currentElement.getAttributeValue(keyAttribute), |
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| currentElement.getLocation()); |
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| Translator t = getAttributeTranslator(keyAttribute);
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| Object finalValue = t.translate(
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| getContributingModule(), |
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| Object.class, |
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| expandedKey, |
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| currentElement.getLocation()); |
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| |
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| _mappedElements.put(finalValue, element);
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| } |
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| } |
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1035
| public List getElements()
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| { |
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| return _elements;
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| } |
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| public Map getMappedElements()
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| { |
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| if (_canElementsBeMapped)
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| return _mappedElements;
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| return null;
|
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| } |
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| |
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6604
| public void push(Object object)
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| { |
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| _stack.add(object);
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| } |
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| public Object pop()
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| { |
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| if (_stack.isEmpty())
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| throw new ArrayIndexOutOfBoundsException(ImplMessages.schemaStackViolation(this));
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| return _stack.remove(_stack.size() - 1);
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| } |
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12892
| public Object peek()
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| { |
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| return peek(0);
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| } |
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19498
| public Object peek(int depth)
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| { |
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| int count = _stack.size();
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| int position = count - 1 - depth;
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| if (position < 0)
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| throw new ArrayIndexOutOfBoundsException(ImplMessages.schemaStackViolation(this));
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| return _stack.get(count - 1 - depth);
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| } |
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24361
| public Module getContributingModule()
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| { |
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| return _contributingModule;
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| } |
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5866
| public Module getDefiningModule()
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| { |
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| return _schema.getDefiningModule();
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| } |
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| |
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| public String getElementPath()
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| { |
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| StringBuffer buffer = new StringBuffer();
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| int count = _elementStack.size();
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| for (int i = 0; i < count; i++)
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| { |
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| if (i > 0)
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| buffer.append('/');
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| buffer.append(((Element) _elementStack.get(i)).getElementName());
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| } |
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| return buffer.toString();
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| } |
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3721
| private void pushElement(Element element)
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| { |
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3721
| _elementStack.add(element);
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| } |
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| private Element peekElement()
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| { |
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| return (Element) _elementStack.get(_elementStack.size() - 1);
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| } |
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| private void popElement()
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| { |
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| _elementStack.remove(_elementStack.size() - 1);
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| } |
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1046
| public void process(List elements, Module contributingModule)
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| { |
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| if (elements == null)
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| return;
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1026
| if (_schema == null)
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| { |
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| _elements.addAll(elements);
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| return;
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| } |
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| _contributingModule = contributingModule;
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| int count = elements.size();
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| for (int i = 0; i < count; i++)
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| { |
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| Element e = (Element) elements.get(i);
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| processRootElement(e);
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| } |
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| _contributingModule = null;
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| } |
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| private void processRootElement(Element element)
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| { |
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| String name = element.getElementName();
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| SchemaElement schemaElement = (SchemaElement) _elementMap.get(name);
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| processElement(element, schemaElement);
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| } |
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| private SchemaElement _activeElement; |
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| |
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3721
| private void processElement(Element element, SchemaElement schemaElement)
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| { |
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| pushElement(element);
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| |
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| if (schemaElement == null)
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| _errorLog
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| .error(ImplMessages.unknownElement(this, element), element.getLocation(), null); |
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| else |
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| { |
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3720
| SchemaElement prior = _activeElement;
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| schemaElement.validateAttributes(element);
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| _activeElement = schemaElement;
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| schemaElement.fireBegin(element);
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| processNestedElements(element, schemaElement);
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| schemaElement.fireEnd(element);
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| _activeElement = prior;
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| } |
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3718
| popElement();
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| } |
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3717
| private void processNestedElements(Element element, SchemaElement schemaElement)
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| { |
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| List l = element.getElements();
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| int count = l.size();
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| |
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| for (int i = 0; i < count; i++)
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| { |
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| Element nested = (Element) l.get(i);
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| String name = nested.getElementName();
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| |
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| processElement(nested, schemaElement.getNestedElement(name));
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| } |
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| } |
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| |
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| public Translator getContentTranslator()
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| { |
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| return _activeElement.getContentTranslator();
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| } |
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| |
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7187
| public Translator getAttributeTranslator(String attributeName)
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| { |
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7187
| return _activeElement.getAttributeTranslator(attributeName);
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| } |
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8298
| public Translator getTranslator(String translator)
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| { |
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8298
| return getContributingModule().getTranslator(translator);
|
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| } |
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| } |