Examples with GString groovy.lang.GString used on opensource projects

Example 46 with GString

use of groovy.lang.GString in project groovy by apache.

the class Sql method query.

/**
     * Performs the given SQL query, which should return a single
     * <code>ResultSet</code> object. The given closure is called
     * with the <code>ResultSet</code> as its argument.
     * The query may contain GString expressions.
     * <p>
     * Example usage:
     * <pre>
     * def location = 25
     * sql.query "select * from PERSON where location_id < $location", { ResultSet rs ->
     *     while (rs.next()) println rs.getString('firstname')
     * }
     * </pre>
     * <p>
     * All resources including the ResultSet are closed automatically
     * after the closure is called.
     *
     * @param gstring a GString containing the SQL query with embedded params
     * @param closure called for each row with a <code>ResultSet</code>
     * @throws SQLException if a database access error occurs
     * @see #expand(Object)
     */
public void query(GString gstring, Closure closure) throws SQLException {
    List<Object> params = getParameters(gstring);
    String sql = asSql(gstring, params);
    query(sql, params, closure);
}

Example 47 with GString

use of groovy.lang.GString in project groovy by apache.

the class Sql method asSql.

/**
     * Hook to allow derived classes to override sql generation from GStrings.
     *
     * @param gstring a GString containing the SQL query with embedded params
     * @param values  the values to embed
     * @return the SQL version of the given query using ? instead of any parameter
     * @see #expand(Object)
     */
protected String asSql(GString gstring, List<Object> values) {
    String[] strings = gstring.getStrings();
    if (strings.length <= 0) {
        throw new IllegalArgumentException("No SQL specified in GString: " + gstring);
    }
    boolean nulls = false;
    StringBuilder buffer = new StringBuilder();
    boolean warned = false;
    Iterator<Object> iter = values.iterator();
    for (int i = 0; i < strings.length; i++) {
        String text = strings[i];
        if (text != null) {
            buffer.append(text);
        }
        if (iter.hasNext()) {
            Object value = iter.next();
            if (value != null) {
                if (value instanceof ExpandedVariable) {
                    buffer.append(((ExpandedVariable) value).getObject());
                    iter.remove();
                } else {
                    boolean validBinding = true;
                    if (i < strings.length - 1) {
                        String nextText = strings[i + 1];
                        if ((text.endsWith("\"") || text.endsWith("'")) && (nextText.startsWith("'") || nextText.startsWith("\""))) {
                            if (!warned) {
                                LOG.warning("In Groovy SQL please do not use quotes around dynamic expressions " + "(which start with $) as this means we cannot use a JDBC PreparedStatement " + "and so is a security hole. Groovy has worked around your mistake but the security hole is still there. " + "The expression so far is: " + buffer.toString() + "?" + nextText);
                                warned = true;
                            }
                            buffer.append(value);
                            iter.remove();
                            validBinding = false;
                        }
                    }
                    if (validBinding) {
                        buffer.append("?");
                    }
                }
            } else {
                nulls = true;
                iter.remove();
                // will replace these with nullish values
                buffer.append("?'\"?");
            }
        }
    }
    String sql = buffer.toString();
    if (nulls) {
        sql = nullify(sql);
    }
    return sql;
}

Example 48 with GString

use of groovy.lang.GString in project groovy by apache.

the class GPathResult method setProperty.

/**
     * Replaces the specified property of this GPathResult with a new value.
     *
     * @param property the property of this GPathResult to replace
     * @param newValue the new value of the property
     */
public void setProperty(final String property, final Object newValue) {
    if (property.startsWith("@")) {
        if (newValue instanceof String || newValue instanceof GString) {
            final Iterator iter = iterator();
            while (iter.hasNext()) {
                final NodeChild child = (NodeChild) iter.next();
                child.attributes().put(property.substring(1), newValue);
            }
        }
    } else {
        final GPathResult result = new NodeChildren(this, property, this.namespaceTagHints);
        if (newValue instanceof Map) {
            for (Object o : ((Map) newValue).entrySet()) {
                final Map.Entry entry = (Map.Entry) o;
                result.setProperty("@" + entry.getKey(), entry.getValue());
            }
        } else {
            if (newValue instanceof Closure) {
                result.replaceNode((Closure) newValue);
            } else {
                result.replaceBody(newValue);
            }
        }
    }
}

Example 49 with GString

use of groovy.lang.GString in project groovy by apache.

the class ArrayCachedClass method coerceArgument.

public Object coerceArgument(Object argument) {
    Class argumentClass = argument.getClass();
    if (argumentClass.getName().charAt(0) != '[')
        return argument;
    Class argumentComponent = argumentClass.getComponentType();
    Class paramComponent = getTheClass().getComponentType();
    if (paramComponent.isPrimitive()) {
        argument = DefaultTypeTransformation.convertToPrimitiveArray(argument, paramComponent);
    } else if (paramComponent == String.class && argument instanceof GString[]) {
        GString[] strings = (GString[]) argument;
        String[] ret = new String[strings.length];
        for (int i = 0; i < strings.length; i++) {
            ret[i] = strings[i].toString();
        }
        argument = ret;
    } else if (paramComponent == Object.class && argumentComponent.isPrimitive()) {
        argument = DefaultTypeTransformation.primitiveArrayBox(argument);
    }
    return argument;
}

Example 50 with GString

use of groovy.lang.GString in project groovy by apache.

the class ObjectArrayPutAtMetaMethod method adjustNewValue.

private static Object adjustNewValue(Object[] objects, Object newValue) {
    Class arrayComponentClass = objects.getClass().getComponentType();
    Object adjustedNewVal = newValue;
    if (newValue instanceof Number) {
        if (!arrayComponentClass.equals(newValue.getClass())) {
            adjustedNewVal = DefaultTypeTransformation.castToType(newValue, arrayComponentClass);
        }
    } else if (Character.class.isAssignableFrom(arrayComponentClass)) {
        adjustedNewVal = DefaultTypeTransformation.getCharFromSizeOneString(newValue);
    } else if (Number.class.isAssignableFrom(arrayComponentClass)) {
        if (newValue instanceof Character || newValue instanceof String || newValue instanceof GString) {
            Character ch = DefaultTypeTransformation.getCharFromSizeOneString(newValue);
            adjustedNewVal = DefaultTypeTransformation.castToType(ch, arrayComponentClass);
        }
    } else if (arrayComponentClass.isArray()) {
        adjustedNewVal = DefaultTypeTransformation.castToType(newValue, arrayComponentClass);
    }
    return adjustedNewVal;
}