SchemaSpec.java

package co.gem.round.patchboard.definition;

import com.google.gson.JsonObject;

/**
 * Created by julian on 12/11/14.
 */
public class SchemaSpec {
    static final String MEDIATYPE = "mediaType";
    static final String PROPERTIES = "properties";
    static final String TYPE = "type";
    static final String ITEMS = "items";
    static final String REF = "$ref";
    static final String ID = "id";

    private String id;
    private String type;
    private ResourceSpec arrayResource;
    private ResourceSpec resourceSpec;
    private String mediaType;
    private JsonObject properties;

    private SchemaSpec(String id, String type, String mediaType, ResourceSpec arrayResource, ResourceSpec resourceSpec, JsonObject properties) {
        this.id = id;
        this.type = type;
        this.arrayResource = arrayResource;
        this.mediaType = mediaType;
        this.resourceSpec = resourceSpec;
        this.properties = properties;
    }

    public static SchemaSpec parse(String name, JsonObject schemaJson, Definition definition) {
        ResourceSpec resourceSpec = definition.resource(name);
        String mediaType = schemaJson.get(MEDIATYPE).getAsString();
        String id = schemaJson.get(ID).getAsString();
        String type = null;
        if (schemaJson.has(TYPE))
            type = schemaJson.get(TYPE).getAsString();
        ResourceSpec arrayResource = null;
        if (schemaJson.has(ITEMS)) {
            JsonObject items = schemaJson.get(ITEMS).getAsJsonObject();
            // FIXME: this is ugly. Need a better strategy for parsing definitions
            // to avoid this
            String resourceName = items.get(REF).getAsString().replace("#", "");
            arrayResource = definition.resource(resourceName);
        }
        JsonObject properties = null;
        if (schemaJson.has(PROPERTIES))
            properties = schemaJson.get(PROPERTIES).getAsJsonObject();

        return new SchemaSpec(id, type, mediaType, arrayResource, resourceSpec, properties);
    }

    public ResourceSpec resourceSpec() {
        return resourceSpec;
    }
    public ResourceSpec arrayResource() { return arrayResource; }
    public String mediaType() { return mediaType; }
    public String id() { return id; }
    public String type() { return type; }
    public JsonObject properties() { return properties; }

    public String associationSchemaId(String name) {
        if (properties() != null) {
            if (properties().has(name)) {
                JsonObject property = properties().get(name).getAsJsonObject();
                if (property.has(REF)) return property.get(REF).getAsString();
            }
        }
        return null;
    }
}