Example usage for org.eclipse.jdt.core.eval IEvaluationContext setImports

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.eval IEvaluationContext setImports.

Prototype

public void setImports(String[] imports);

Source Link

Document

Sets the import declarations for this evaluation context.

Usage

From source file:org.drools.eclipse.editors.completion.DefaultCompletionProcessor.java

License:Apache License

protected void requestJavaCompletionProposals(final String javaText, final String prefix,
        final int documentOffset, Map params, Collection results, boolean useDrools, boolean useContext) {

    String javaTextWithoutPrefix = CompletionUtil.getTextWithoutPrefix(javaText, prefix);
    // boolean to filter default Object methods produced by code completion when in the beginning of a statement
    boolean filterObjectMethods = false;
    if ("".equals(javaTextWithoutPrefix.trim())
            || CompletionUtil.START_OF_NEW_JAVA_STATEMENT.matcher(javaTextWithoutPrefix).matches()) {
        filterObjectMethods = true;/*w  w  w  .ja  v  a2s  . c o m*/
    }
    IJavaProject javaProject = getCurrentJavaProject();
    if (javaProject == null) {
        return;
    }

    CompletionProposalCollector collector = new CompletionProposalCollector(javaProject);
    collector.acceptContext(new CompletionContext());

    try {
        IEvaluationContext evalContext = javaProject.newEvaluationContext();
        List imports = getImports();
        if (imports != null && imports.size() > 0) {
            evalContext.setImports((String[]) imports.toArray(new String[imports.size()]));
        }
        StringBuffer javaTextWithParams = new StringBuffer();
        Iterator iterator = params.entrySet().iterator();
        while (iterator.hasNext()) {
            Map.Entry entry = (Map.Entry) iterator.next();
            // this does not seem to work, so adding variables manually
            // evalContext.newVariable((String) entry.getValue(), (String) entry.getKey(), null);
            javaTextWithParams.append(entry.getValue() + " " + entry.getKey() + ";\n");
        }
        if (useDrools) {
            javaTextWithParams.append("org.drools.spi.KnowledgeHelper drools;");
            javaTextWithParams.append("org.drools.runtime.rule.RuleContext kcontext;");
        }
        if (useContext) {
            javaTextWithParams.append("org.drools.spi.ProcessContext context;");
            javaTextWithParams.append("org.drools.runtime.process.ProcessContext kcontext;");
        }
        javaTextWithParams.append(javaText);
        String jtext = javaTextWithParams.toString();
        String fixedText = new KnowledgeHelperFixer().fix(jtext);

        evalContext.codeComplete(fixedText, fixedText.length(), collector);
        IJavaCompletionProposal[] proposals = collector.getJavaCompletionProposals();
        for (int i = 0; i < proposals.length; i++) {
            if (proposals[i] instanceof AbstractJavaCompletionProposal) {
                AbstractJavaCompletionProposal javaProposal = (AbstractJavaCompletionProposal) proposals[i];
                int replacementOffset = documentOffset
                        - (fixedText.length() - javaProposal.getReplacementOffset());
                javaProposal.setReplacementOffset(replacementOffset);
                if (javaProposal instanceof LazyJavaTypeCompletionProposal) {
                    String completionPrefix = javaText
                            .substring(javaText.length() - javaProposal.getReplacementLength());
                    int dotIndex = completionPrefix.lastIndexOf('.');
                    // match up to the last dot in order to make higher level matching still work (camel case...)
                    if (dotIndex != -1) {
                        javaProposal.setReplacementString(
                                ((LazyJavaTypeCompletionProposal) javaProposal).getQualifiedTypeName());
                    }
                }
                if (!filterObjectMethods || !(proposals[i] instanceof JavaMethodCompletionProposal)) {
                    results.add(proposals[i]);
                }
            }
        }
    } catch (Throwable t) {
        DroolsEclipsePlugin.log(t);
    }
}

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From source file:org.hibernate.eclipse.criteriaeditor.CriteriaEditor.java

License:Open Source License

protected IEvaluationContext getEvaluationContext(IJavaProject project) {
    IEvaluationContext evalCtx = null;
    if (project != null) {
        evalCtx = project.newEvaluationContext();
    }//from w w w.  j a va2s.  co  m
    if (evalCtx != null) {
        evalCtx.setImports(getImports());
    }
    return evalCtx;
}

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