Example usage for com.google.gson ExclusionStrategy ExclusionStrategy

Introduction

In this page you can find the example usage for com.google.gson ExclusionStrategy ExclusionStrategy.

Prototype

ExclusionStrategy

Source Link

Usage

From source file:com.example.sampledemo.request.GsonRequest.java

License:Apache License

public GsonRequest(int method, String url, Type type, String requestBody, Listener<T> listener,
        ErrorListener errorListener) {
    super(method, url, errorListener);
    mJavaClass = type;/*from   www.j av  a  2 s  .com*/
    mListener = listener;
    mRequestBody = requestBody;
    mGson = new GsonBuilder().setExclusionStrategies(new ExclusionStrategy() {
        @Override
        public boolean shouldSkipField(FieldAttributes f) {
            return false;//f.getDeclaringClass().equals(RealmObject.class);
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            return false;
        }
    }).create();
}

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From source file:com.google.api.ads.adwords.keywordoptimizer.api.JsonUtil.java

License:Open Source License

/**
 * Initializes Gson to convert objects to and from JSON. This method customizes a "plain" Gson by
 * adding appropriate exclusions strategies / adapters as needed in this project for a "pretty"
 * output. /*  w w  w  .  j a  v  a 2s. com*/
 */
private static Gson initGson(boolean prettyPrint) {
    GsonBuilder builder = new GsonBuilder();

    // Exclude superclasses.
    ExclusionStrategy superclassExclusionStrategy = new SuperclassExclusionStrategy();
    builder.addDeserializationExclusionStrategy(superclassExclusionStrategy);
    builder.addSerializationExclusionStrategy(superclassExclusionStrategy);

    // Exclude underscore fields in client lib objects.
    ExclusionStrategy underscoreExclusionStrategy = new ExclusionStrategy() {
        @Override
        public boolean shouldSkipField(FieldAttributes field) {
            if (field.getName().startsWith("_")) {
                return true;
            }

            return false;
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            return false;
        }
    };
    builder.addDeserializationExclusionStrategy(underscoreExclusionStrategy);
    builder.addSerializationExclusionStrategy(underscoreExclusionStrategy);

    // Render KeywordCollection as an array of KeywordInfos.
    builder.registerTypeAdapter(KeywordCollection.class, new JsonSerializer<KeywordCollection>() {
        @Override
        public JsonElement serialize(KeywordCollection src, java.lang.reflect.Type typeOfSrc,
                JsonSerializationContext context) {
            JsonArray out = new JsonArray();
            for (KeywordInfo info : src.getListSortedByScore()) {
                out.add(context.serialize(info));
            }
            return out;
        }
    });
    // Render Money as a primitive.
    builder.registerTypeAdapter(Money.class, new JsonSerializer<Money>() {
        @Override
        public JsonElement serialize(Money src, java.lang.reflect.Type typeOfSrc,
                JsonSerializationContext context) {
            JsonElement out = new JsonPrimitive(src.getMicroAmount() / 1000000);
            return out;
        }
    });
    // Render Keyword in a simple way.
    builder.registerTypeAdapter(Keyword.class, new JsonSerializer<Keyword>() {
        @Override
        public JsonElement serialize(Keyword src, java.lang.reflect.Type typeOfSrc,
                JsonSerializationContext context) {
            JsonObject out = new JsonObject();
            out.addProperty("text", src.getText());
            out.addProperty("matchtype", src.getMatchType().toString());
            return out;
        }
    });
    // Render Throwable in a simple way (for all subclasses).
    builder.registerTypeHierarchyAdapter(Throwable.class, new JsonSerializer<Throwable>() {
        @Override
        public JsonElement serialize(Throwable src, java.lang.reflect.Type typeOfSrc,
                JsonSerializationContext context) {
            JsonObject out = new JsonObject();
            out.addProperty("message", src.getMessage());
            out.addProperty("type", src.getClass().getName());

            JsonArray stack = new JsonArray();
            for (StackTraceElement stackTraceElement : src.getStackTrace()) {
                JsonObject stackElem = new JsonObject();
                stackElem.addProperty("file", stackTraceElement.getFileName());
                stackElem.addProperty("line", stackTraceElement.getLineNumber());
                stackElem.addProperty("method", stackTraceElement.getMethodName());
                stackElem.addProperty("class", stackTraceElement.getClassName());
                stack.add(stackElem);
            }
            out.add("stack", stack);

            if (src.getCause() != null) {
                out.add("cause", context.serialize(src.getCause()));
            }
            return out;
        }
    });

    if (prettyPrint) {
        builder.setPrettyPrinting();
    }

    return builder.create();
}

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From source file:com.google.belay.server.GsonUtil.java

License:Open Source License

public static GsonBuilder getGsonBuilder() {
    GsonBuilder gb = new GsonBuilder();
    gb.registerTypeAdapter(Capability.class, new CapabilityAdapter());
    gb.setExclusionStrategies(new ExclusionStrategy() {

        @Override/*www . j av  a 2s .  c  o  m*/
        public boolean shouldSkipField(FieldAttributes attrs) {
            return attrs.getAnnotation(HideFromClient.class) != null;
        }

        @Override
        public boolean shouldSkipClass(Class<?> cls) {
            return false;
        }
    });

    return gb;
}

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From source file:com.google.gerrit.httpd.restapi.RestApiServlet.java

License:Apache License

private static void enablePartialGetFields(GsonBuilder gb, Multimap<String, String> config) {
    final Set<String> want = Sets.newHashSet();
    for (String p : config.get("fields")) {
        Iterables.addAll(want, OptionUtil.splitOptionValue(p));
    }/*from  w  w  w .j a  v  a  2  s.c om*/
    if (!want.isEmpty()) {
        gb.addSerializationExclusionStrategy(new ExclusionStrategy() {
            private final Map<String, String> names = Maps.newHashMap();

            @Override
            public boolean shouldSkipField(FieldAttributes field) {
                String name = names.get(field.getName());
                if (name == null) {
                    // Names are supplied by Gson in terms of Java source.
                    // Translate and cache the JSON lower_case_style used.
                    try {
                        name = FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES.translateName(//
                                field.getDeclaringClass().getDeclaredField(field.getName()));
                        names.put(field.getName(), name);
                    } catch (SecurityException e) {
                        return true;
                    } catch (NoSuchFieldException e) {
                        return true;
                    }
                }
                return !want.contains(name);
            }

            @Override
            public boolean shouldSkipClass(Class<?> clazz) {
                return false;
            }
        });
    }
}

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From source file:com.hmatalonga.greenhub.util.GsonRealmBuilder.java

License:Apache License

private static GsonBuilder getBuilder() {
    return new GsonBuilder().setExclusionStrategies(new ExclusionStrategy() {
        @Override//from  w ww  .  ja va2 s. co m
        public boolean shouldSkipField(FieldAttributes f) {
            return f.getDeclaringClass().equals(RealmObject.class);
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            return false;
        }
    });
}

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From source file:com.jd.survey.service.util.JsonHelperService.java

License:Open Source License

public String serializeSurveyDefinition(SurveyDefinition surveyDefinition) {
    try {//w w w . j a  v a2s  .c o m
        GsonBuilder gsonBuilder = new GsonBuilder();
        //set up the fields to skip in the serialization
        gsonBuilder = gsonBuilder.setExclusionStrategies(new ExclusionStrategy() {
            public boolean shouldSkipClass(Class<?> clazz) {
                return false;
            }

            @Override
            public boolean shouldSkipField(FieldAttributes f) {
                boolean skip = (f.getDeclaringClass() == SurveyDefinition.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == SurveyDefinition.class && f.getName().equals("version"))
                        || (f.getDeclaringClass() == SurveyDefinition.class && f.getName().equals("department"))
                        || (f.getDeclaringClass() == SurveyDefinition.class && f.getName().equals("users"))
                        || (f.getDeclaringClass() == SurveyDefinitionPage.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == SurveyDefinitionPage.class
                                && f.getName().equals("surveyDefinition"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("version"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("page"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("optionsList"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("rowLabelsList"))
                        || (f.getDeclaringClass() == Question.class && f.getName().equals("columnLabelsList"))
                        || (f.getDeclaringClass() == QuestionOption.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == QuestionOption.class && f.getName().equals("version"))
                        || (f.getDeclaringClass() == QuestionOption.class && f.getName().equals("question"))
                        || (f.getDeclaringClass() == QuestionRowLabel.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == QuestionRowLabel.class && f.getName().equals("version"))
                        || (f.getDeclaringClass() == QuestionRowLabel.class && f.getName().equals("question"))
                        || (f.getDeclaringClass() == QuestionColumnLabel.class && f.getName().equals("id"))
                        || (f.getDeclaringClass() == QuestionColumnLabel.class && f.getName().equals("version"))
                        || (f.getDeclaringClass() == QuestionColumnLabel.class
                                && f.getName().equals("question"));
                return skip;
            }

        });

        //de-proxy the object
        gsonBuilder.registerTypeHierarchyAdapter(HibernateProxy.class, new HibernateProxySerializer());
        Hibernate.initialize(surveyDefinition);
        if (surveyDefinition instanceof HibernateProxy) {
            surveyDefinition = (SurveyDefinition) ((HibernateProxy) surveyDefinition)
                    .getHibernateLazyInitializer().getImplementation();
        }
        Gson gson = gsonBuilder.serializeNulls().create();
        return gson.toJson(surveyDefinition);

    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw (new RuntimeException(e));
    }

}

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From source file:com.nouveauxterritoires.eterritoires.identityserver.openid.connect.view.TaxeUserInfoViewForAdmins.java

License:Apache License

/**
 * @return/*from  ww  w. ja  va  2s .  c o m*/
 */
@Override
protected ExclusionStrategy getExclusionStrategy() {
    return new ExclusionStrategy() {

        @Override
        public boolean shouldSkipField(FieldAttributes f) {
            if (blacklistedFields.contains(f.getName())) {
                return true;
            } else {
                return false;
            }
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            // skip the JPA binding wrapper
            if (clazz.equals(BeanPropertyBindingResult.class)) {
                return true;
            }
            return false;
        }

    };
}

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From source file:com.nouveauxterritoires.eterritoires.identityserver.openid.connect.view.TaxeUserInfoViewForUsers.java

License:Apache License

@Override
protected ExclusionStrategy getExclusionStrategy() {
    return new ExclusionStrategy() {

        @Override//  w  ww . j  a  v a2 s.  c  om
        public boolean shouldSkipField(FieldAttributes f) {
            // whitelist the handful of fields that are good
            if (whitelistedFields.contains(f.getName())) {
                return false;
            } else {
                return true;
            }
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            // skip the JPA binding wrapper
            if (clazz.equals(BeanPropertyBindingResult.class)) {
                return true;
            }
            return false;
        }

    };
}

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From source file:com.shazam.shazamcrest.GsonProvider.java

License:Apache License

/**
 * Returns a {@link Gson} instance containing {@link ExclusionStrategy} based on the object types to ignore during
 * serialisation/deserialisation./*from  w ww .j av a 2 s  .c om*/
 * 
 * @param typesToIgnore the object types to exclude from serialisation/deserialisation.
 * @return an instance of {@link Gson}
 */
public static Gson gson(final List<Class<?>> typesToIgnore) {
    if (typesToIgnore.size() == 0) {
        return GsonProvider.GSON;
    } else {
        return new GsonBuilder().setPrettyPrinting().enableComplexMapKeySerialization()
                .setExclusionStrategies(new ExclusionStrategy() {
                    @Override
                    public boolean shouldSkipField(FieldAttributes f) {
                        return false;
                    }

                    @Override
                    public boolean shouldSkipClass(Class<?> clazz) {
                        return (typesToIgnore.contains(clazz));
                    }

                }).create();
    }
}

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From source file:com.shazam.shazamcrest.matcher.GsonProvider.java

License:Apache License

private static void registerExclusionStrategies(GsonBuilder gsonBuilder, final List<Class<?>> typesToIgnore,
        final List<Matcher<String>> fieldsToIgnore) {
    if (typesToIgnore.isEmpty() && fieldsToIgnore.isEmpty()) {
        return;//from  www. j  av a  2s .com
    }

    gsonBuilder.setExclusionStrategies(new ExclusionStrategy() {
        @Override
        public boolean shouldSkipField(FieldAttributes f) {
            for (Matcher<String> p : fieldsToIgnore) {
                if (p.matches(f.getName())) {
                    return true;
                }
            }
            return false;
        }

        @Override
        public boolean shouldSkipClass(Class<?> clazz) {
            return (typesToIgnore.contains(clazz));
        }
    });
}

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