Example usage for com.google.common.collect Maps asConverter

Introduction

In this page you can find the example usage for com.google.common.collect Maps asConverter.

Prototype

@Beta
public static <A, B> Converter<A, B> asConverter(final BiMap<A, B> bimap) 

Source Link

Document

Returns a Converter that converts values using BiMap#get bimap.get() , and whose inverse view converts values using BiMap#inverse bimap.inverse() .get() .

Usage

From source file:org.opendaylight.yangtools.yang.data.api.schema.xpath.PrefixConverters.java

/**
 * Create a prefix {@link Converter} for {@link XPathExpressionException} defined in a particular YANG
 * {@link Module} .Instantiation requires establishing how a module's imports are mapped to actual modules
 * and their namespaces. This information is cached and used for improved lookups.
 *
 * @param ctx A SchemaContext//from  ww  w. ja  v a  2 s . c o m
 * @param module Module in which the XPath is defined
 * @return A new Converter
 */
public static @Nonnull Converter<String, QNameModule> create(final SchemaContext ctx, final Module module) {
    // Always check for null ctx
    Preconditions.checkNotNull(ctx, "Schema context may not be null");

    // Use immutable map builder for detection of duplicates (which should never occur)
    final Builder<String, QNameModule> b = ImmutableBiMap.builder();
    b.put(module.getPrefix(), module.getQNameModule());

    for (ModuleImport i : module.getImports()) {
        final Module mod = ctx.findModuleByName(i.getModuleName(), i.getRevision());
        Preconditions.checkArgument(mod != null, "Unsatisfied import of %s by module %s", i, module);

        b.put(i.getPrefix(), mod.getQNameModule());
    }

    return Maps.asConverter(b.build());
}

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