org.mule.runtime.extension.internal.loader.validator.ConnectionProviderNameModelValidator.java Source code

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Here is the source code for org.mule.runtime.extension.internal.loader.validator.ConnectionProviderNameModelValidator.java

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/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.extension.internal.loader.validator;

import static java.lang.String.format;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toSet;
import org.mule.runtime.api.meta.NamedObject;
import org.mule.runtime.api.meta.model.ExtensionModel;
import org.mule.runtime.api.meta.model.connection.ConnectionProviderModel;
import org.mule.runtime.api.meta.model.util.IdempotentExtensionWalker;
import org.mule.runtime.extension.api.exception.IllegalModelDefinitionException;
import org.mule.runtime.extension.api.loader.ExtensionModelValidator;
import org.mule.runtime.extension.api.loader.Problem;
import org.mule.runtime.extension.api.loader.ProblemsReporter;

import com.google.common.collect.HashMultiset;
import com.google.common.collect.Multiset;

import java.util.HashSet;
import java.util.Set;

/**
 * Validates that there's no name clashing among the extension's connection providers
 *
 * @since 1.0
 */
public class ConnectionProviderNameModelValidator implements ExtensionModelValidator {

    @Override
    public void validate(ExtensionModel model, ProblemsReporter problemsReporter)
            throws IllegalModelDefinitionException {
        Multiset<String> names = HashMultiset.create();
        Set<ConnectionProviderModel> models = new HashSet<>();
        new IdempotentExtensionWalker() {

            @Override
            public void onConnectionProvider(ConnectionProviderModel model) {
                models.add(model);
                names.add(model.getName());
            }
        }.walk(model);

        Set<ConnectionProviderModel> repeatedNameModels = models.stream()
                .filter(cp -> names.count(cp.getName()) > 1).collect(toSet());

        if (!repeatedNameModels.isEmpty()) {
            problemsReporter.addError(new Problem(model,
                    format("There are %d connection providers with repeated names. Offending names are: [%s]",
                            repeatedNameModels.size(),
                            repeatedNameModels.stream().map(NamedObject::getName).collect(joining(",")))));
        }
    }
}