Examples with RetryException org.structr.api.RetryException used on opensource projects

Example 6 with RetryException

use of org.structr.api.RetryException in project structr by structr.

the class AbstractPrimitiveProperty method setProperty.

@Override
public Object setProperty(final SecurityContext securityContext, final GraphObject obj, final T value) throws FrameworkException {
    final PropertyConverter converter = databaseConverter(securityContext, PropertyMap.unwrap(obj));
    Object convertedValue = value;
    if (converter != null) {
        convertedValue = converter.convert(value);
    }
    // use transformators from property
    for (final String fqcn : transformators) {
        // first test, use caching here later..
        final Transformer transformator = getTransformator(fqcn);
        if (transformator != null) {
            convertedValue = transformator.setProperty(PropertyMap.unwrap(obj), this, convertedValue);
        }
    }
    final PropertyContainer propertyContainer = obj.getPropertyContainer();
    if (propertyContainer != null) {
        if (!TransactionCommand.inTransaction()) {
            throw new NotInTransactionException("setProperty outside of transaction");
        }
        boolean internalSystemPropertiesUnlocked = (obj instanceof CreationContainer);
        // collect modified properties
        if (obj instanceof AbstractNode) {
            if (!unvalidated) {
                TransactionCommand.nodeModified(securityContext.getCachedUser(), (AbstractNode) obj, AbstractPrimitiveProperty.this, propertyContainer.hasProperty(dbName()) ? propertyContainer.getProperty(dbName()) : null, value);
            }
            internalSystemPropertiesUnlocked = ((AbstractNode) obj).internalSystemPropertiesUnlocked;
        } else if (obj instanceof AbstractRelationship) {
            if (!unvalidated) {
                TransactionCommand.relationshipModified(securityContext.getCachedUser(), (AbstractRelationship) obj, AbstractPrimitiveProperty.this, propertyContainer.hasProperty(dbName()) ? propertyContainer.getProperty(dbName()) : null, value);
            }
            internalSystemPropertiesUnlocked = ((AbstractRelationship) obj).internalSystemPropertiesUnlocked;
        }
        // catch all sorts of errors and wrap them in a FrameworkException
        try {
            // save space
            if (convertedValue == null) {
                propertyContainer.removeProperty(dbName());
            } else {
                if (!isSystemInternal() || internalSystemPropertiesUnlocked) {
                    propertyContainer.setProperty(dbName(), convertedValue);
                } else {
                    logger.warn("Tried to set internal system property {} to {}. Action was denied.", new Object[] { dbName(), convertedValue });
                }
            }
            updateAccessInformation(securityContext, propertyContainer);
        } catch (final RetryException rex) {
            // don't catch RetryException here
            throw rex;
        } catch (Throwable t) {
            // throw FrameworkException with the given cause
            final FrameworkException fex = new FrameworkException(500, "Unable to set property " + jsonName() + " on entity with ID " + obj.getUuid() + ": " + t.toString());
            fex.initCause(t);
            throw fex;
        }
        if (isIndexed()) {
            // work
            if (!isPassivelyIndexed()) {
                index(obj, convertedValue);
            }
        }
    }
    return null;
}

Example 7 with RetryException

use of org.structr.api.RetryException in project structr by structr.

the class JsonRestServlet method doDelete.

// <editor-fold defaultstate="collapsed" desc="DELETE">
@Override
protected void doDelete(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
    SecurityContext securityContext = null;
    Authenticator authenticator = null;
    RestMethodResult result = null;
    Resource resource = null;
    try {
        assertInitialized();
        // first thing to do!
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        // isolate request authentication in a transaction
        try (final Tx tx = StructrApp.getInstance().tx()) {
            authenticator = config.getAuthenticator();
            securityContext = authenticator.initializeAndExamineRequest(request, response);
            tx.success();
        }
        final App app = StructrApp.getInstance(securityContext);
        // isolate resource authentication
        try (final Tx tx = app.tx()) {
            resource = ResourceHelper.optimizeNestedResourceChain(securityContext, request, resourceMap, propertyView);
            authenticator.checkResourceAccess(securityContext, request, resource.getResourceSignature(), propertyView.get(securityContext));
            tx.success();
        }
        // isolate doDelete
        boolean retry = true;
        while (retry) {
            try {
                result = resource.doDelete();
                retry = false;
            } catch (RetryException ddex) {
                retry = true;
            }
        }
        // isolate write output
        try (final Tx tx = app.tx()) {
            result.commitResponse(gson.get(), response);
            tx.success();
        }
    } catch (FrameworkException frameworkException) {
        // set status & write JSON output
        response.setStatus(frameworkException.getStatus());
        gson.get().toJson(frameworkException, response.getWriter());
        response.getWriter().println();
    } catch (JsonSyntaxException jsex) {
        logger.warn("JsonSyntaxException in DELETE", jsex);
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in DELETE: " + jsex.getMessage()));
    } catch (JsonParseException jpex) {
        logger.warn("JsonParseException in DELETE", jpex);
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in DELETE: " + jpex.getMessage()));
    } catch (Throwable t) {
        logger.warn("Exception in DELETE", t);
        int code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in DELETE: " + t.getMessage()));
    } finally {
        try {
            // response.getWriter().flush();
            response.getWriter().close();
        } catch (IOException t) {
            logger.warn("Unable to flush and close response: {}", t.getMessage());
        }
    }
}

Example 8 with RetryException

use of org.structr.api.RetryException in project structr by structr.

the class JsonRestServlet method doPut.

// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="PUT">
@Override
protected void doPut(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
    final SecurityContext securityContext;
    final Authenticator authenticator;
    final Resource resource;
    RestMethodResult result = new RestMethodResult(HttpServletResponse.SC_BAD_REQUEST);
    try {
        assertInitialized();
        // first thing to do!
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        // get reader before initalizing security context
        final String input = IOUtils.toString(request.getReader());
        // isolate request authentication in a transaction
        try (final Tx tx = StructrApp.getInstance().tx()) {
            authenticator = config.getAuthenticator();
            securityContext = authenticator.initializeAndExamineRequest(request, response);
            tx.success();
        }
        final App app = StructrApp.getInstance(securityContext);
        final IJsonInput jsonInput = cleanAndParseJsonString(app, input);
        if (securityContext != null) {
            // isolate resource authentication
            try (final Tx tx = app.tx()) {
                // evaluate constraint chain
                resource = ResourceHelper.applyViewTransformation(request, securityContext, ResourceHelper.optimizeNestedResourceChain(securityContext, request, resourceMap, propertyView), propertyView);
                authenticator.checkResourceAccess(securityContext, request, resource.getResourceSignature(), propertyView.get(securityContext));
                tx.success();
            }
            // isolate doPut
            boolean retry = true;
            while (retry) {
                try (final Tx tx = app.tx()) {
                    result = resource.doPut(convertPropertySetToMap(jsonInput.getJsonInputs().get(0)));
                    tx.success();
                    retry = false;
                } catch (RetryException ddex) {
                    retry = true;
                }
            }
            // isolate write output
            try (final Tx tx = app.tx()) {
                result.commitResponse(gson.get(), response);
                tx.success();
            }
        } else {
            // isolate write output
            try (final Tx tx = app.tx()) {
                result = new RestMethodResult(HttpServletResponse.SC_FORBIDDEN);
                result.commitResponse(gson.get(), response);
                tx.success();
            }
        }
    } catch (FrameworkException frameworkException) {
        // set status & write JSON output
        response.setStatus(frameworkException.getStatus());
        gson.get().toJson(frameworkException, response.getWriter());
        response.getWriter().println();
    } catch (JsonSyntaxException jsex) {
        logger.warn("PUT: Invalid JSON syntax", jsex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + jsex.getMessage()));
    } catch (JsonParseException jpex) {
        logger.warn("PUT: Unable to parse JSON string", jpex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + jpex.getMessage()));
    } catch (Throwable t) {
        logger.warn("Exception in PUT", t);
        logger.warn("", t);
        int code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + t.getMessage()));
    } finally {
        try {
            // response.getWriter().flush();
            response.getWriter().close();
        } catch (Throwable t) {
            logger.warn("Unable to flush and close response: {}", t.getMessage());
        }
    }
}

Example 9 with RetryException

use of org.structr.api.RetryException in project structr by structr.

the class JsonRestServlet method doOptions.

// <editor-fold defaultstate="collapsed" desc="OPTIONS">
@Override
protected void doOptions(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    final SecurityContext securityContext;
    final Authenticator authenticator;
    final Resource resource;
    RestMethodResult result = new RestMethodResult(HttpServletResponse.SC_BAD_REQUEST);
    try {
        assertInitialized();
        // first thing to do!
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        // isolate request authentication in a transaction
        try (final Tx tx = StructrApp.getInstance().tx()) {
            authenticator = config.getAuthenticator();
            securityContext = authenticator.initializeAndExamineRequest(request, response);
            tx.success();
        }
        final App app = StructrApp.getInstance(securityContext);
        // isolate resource authentication
        try (final Tx tx = app.tx()) {
            resource = ResourceHelper.applyViewTransformation(request, securityContext, ResourceHelper.optimizeNestedResourceChain(securityContext, request, resourceMap, propertyView), propertyView);
            authenticator.checkResourceAccess(securityContext, request, resource.getResourceSignature(), propertyView.get(securityContext));
            tx.success();
        }
        // isolate doOptions
        boolean retry = true;
        while (retry) {
            try (final Tx tx = app.tx()) {
                result = resource.doOptions();
                tx.success();
                retry = false;
            } catch (RetryException ddex) {
                retry = true;
            }
        }
        // isolate write output
        try (final Tx tx = app.tx()) {
            result.commitResponse(gson.get(), response);
            tx.success();
        }
    } catch (FrameworkException frameworkException) {
        // set status & write JSON output
        response.setStatus(frameworkException.getStatus());
        gson.get().toJson(frameworkException, response.getWriter());
        response.getWriter().println();
    } catch (JsonSyntaxException jsex) {
        logger.warn("JsonSyntaxException in OPTIONS", jsex);
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in OPTIONS: " + jsex.getMessage()));
    } catch (JsonParseException jpex) {
        logger.warn("JsonParseException in OPTIONS", jpex);
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in OPTIONS: " + jpex.getMessage()));
    } catch (Throwable t) {
        logger.warn("Exception in OPTIONS", t);
        int code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in OPTIONS: " + t.getMessage()));
    } finally {
        try {
            // response.getWriter().flush();
            response.getWriter().close();
        } catch (Throwable t) {
            logger.warn("Unable to flush and close response: {}", t.getMessage());
        }
    }
}

Example 10 with RetryException

use of org.structr.api.RetryException in project structr by structr.

the class SessionTransaction method close.

@Override
public void close() {
    if (!success) {
        // be sure that they contain the correct values after a rollback.
        for (final EntityWrapper entity : modifiedEntities) {
            entity.stale();
        }
    } else {
        // so that the relationship caches are rebuilt.
        for (final EntityWrapper entity : modifiedEntities) {
            entity.clearCaches();
        }
    }
    // mark this transaction as closed BEFORE trying to actually close it
    // so that it is closed in case of a failure
    closed = true;
    try {
        tx.close();
        session.close();
    } catch (TransientException tex) {
        // transient exceptions can be retried
        throw new RetryException(tex);
    } finally {
        // so that the relationship caches are rebuilt.
        for (final EntityWrapper entity : modifiedEntities) {
            entity.onClose();
        }
        // make sure that the resources are freed
        if (session.isOpen()) {
            session.close();
        }
    }
}