com.atlassian.bamboo.specs.codegen.emitters.value.LiteralEmitter Maven / Gradle / Ivy

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package com.atlassian.bamboo.specs.codegen.emitters.value;

import com.atlassian.bamboo.specs.api.codegen.CodeEmitter;
import com.atlassian.bamboo.specs.api.codegen.CodeGenerationContext;
import com.atlassian.bamboo.specs.api.codegen.CodeGenerationException;
import org.apache.commons.lang3.StringEscapeUtils;
import org.jetbrains.annotations.NotNull;

/**
 * Generates code for simple Java types.
 */
public class LiteralEmitter implements CodeEmitter {
    @NotNull
    @Override
    public String emitCode(final CodeGenerationContext context, final Object value) throws CodeGenerationException {
        if (value == null) {
            return "null";
        }
        Class type = value.getClass();
        if (type == Boolean.class || type == Boolean.TYPE) {
            return Boolean.toString((Boolean) value);
        } else if (type == Long.class || type == Long.TYPE) {
            return Long.toString((Long) value);
        } else if (type == Integer.class || type == Integer.TYPE) {
            return Integer.toString((Integer) value);
        } else if (type == String.class) {
            return "\"" + StringEscapeUtils.escapeJava((String) value) + "\"";
        } else if (type.isEnum()) {
            return context.importClassName(type) + "." + ((Enum) value).name();
        }
        throw new CodeGenerationException("don't know how to generate code for " + type.getCanonicalName());
    }
}