cmdrunner.java

来自「数据仓库展示程序」· Java 代码 · 共 1,855 行 · 第 1/5 页

            buf.append(nl);
            appendList(buf);
        }

        if ((cmd & MDX_CMD) != 0) {
            buf.append(nl);
            appendIndent(buf, 1);
            buf.append("<mdx query> <cr> ( '");
            buf.append(EXECUTE_CHAR);
            buf.append("' | '");
            buf.append(CANCEL_CHAR);
            buf.append("' ) <cr>");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("Execute or cancel mdx query.");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("An mdx query may span one or more lines.");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("After the last line of the query has been entered,");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("on the next line a single execute character, '");
            buf.append(EXECUTE_CHAR);
            buf.append("', may be entered");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("followed by a carriage return.");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("The lone '");
            buf.append(EXECUTE_CHAR);
            buf.append("' informs the interpreter that the query has");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("has been entered and is ready to execute.");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("At anytime during the entry of a query the cancel");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("character, '");
            buf.append(CANCEL_CHAR);
            buf.append("', may be entered alone on a line.");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("This removes all of the query text from the");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("the command interpreter.");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("Queries can also be ended by using a semicolon ';'");
            buf.append(nl);
            appendIndent(buf, 3);
            buf.append("at the end of a line.");
        }
        if ((cmd & FUNC_CMD) != 0) {
            buf.append(nl);
            appendFunc(buf);
        }

        if ((cmd & PARAM_CMD) != 0) {
            buf.append(nl);
            appendParam(buf);
        }

        if ((cmd & CUBE_CMD) != 0) {
            buf.append(nl);
            appendCube(buf);
        }

        if ((cmd & ERROR_CMD) != 0) {
            buf.append(nl);
            appendError(buf);
        }

        if ((cmd & ECHO_CMD) != 0) {
            buf.append(nl);
            appendEcho(buf);
        }

        if ((cmd & EXPR_CMD) != 0) {
            buf.append(nl);
            appendExpr(buf);
        }

        if (cmd == ALL_CMD) {
            // reexecute
            buf.append(nl);
            appendIndent(buf, 1);
            buf.append("= <cr>");
            buf.append(nl);
            appendIndent(buf, 2);
            buf.append("Re-Execute mdx query.");
        }

        if ((cmd & EXIT_CMD) != 0) {
            // exit
            buf.append(nl);
            appendExit(buf);
        }


        return buf.toString();
    }

    protected static void appendIndent(StringBuffer buf, int i) {
        while (i-- > 0) {
            buf.append(CmdRunner.INDENT);
        }
    }

    //////////////////////////////////////////////////////////////////////////
    // set
    //////////////////////////////////////////////////////////////////////////
    protected static void appendSet(StringBuffer buf) {
        appendIndent(buf, 1);
        buf.append("set [ property[=value ] ] <cr>");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With no args, prints all mondrian properties and values.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"property\" prints property's value.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"property=value\" set property to that value.");
    }

    protected String executeSet(String mdxCmd) {
        StringBuffer buf = new StringBuffer(400);

        String[] tokens = mdxCmd.split("\\s+");

        if (tokens.length == 1) {
            // list all properties
            listPropertiesAll(buf);

        } else if (tokens.length == 2) {
            String arg = tokens[1];
            int index = arg.indexOf('=');
            if (index == -1) {
                listProperty(arg, buf);
            } else {
                String[] nv = arg.split("=");
                String name = nv[0];
                String value = nv[1];
                if (isProperty(name)) {
                    try {
                        if (setProperty(name, value)) {
                            this.connectString = null;
                        }
                    } catch (Exception ex) {
                        setError(ex);
                    }
                } else {
                    buf.append("Bad property name:");
                    buf.append(name);
                    buf.append(nl);
                }
            }

        } else {
            buf.append("Bad command usage: \"");
            buf.append(mdxCmd);
            buf.append('"');
            buf.append(nl);
            appendSet(buf);
        }

        return buf.toString();
    }

    //////////////////////////////////////////////////////////////////////////
    // log
    //////////////////////////////////////////////////////////////////////////
    protected static void appendLog(StringBuffer buf) {
        appendIndent(buf, 1);
        buf.append("log [ classname[=level ] ] <cr>");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With no args, prints the current log level of all classes.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"classname\" prints the current log level of the class.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"classname=level\" set log level to new value.");
    }

    protected String executeLog(String mdxCmd) {
        StringBuffer buf = new StringBuffer(200);

        String[] tokens = mdxCmd.split("\\s+");

        if (tokens.length == 1) {
            Enumeration e = LogManager.getCurrentLoggers();
            while (e.hasMoreElements()) {
                Logger logger = (Logger) e.nextElement();
                buf.append(logger.getName());
                buf.append(':');
                buf.append(logger.getLevel());
                buf.append(nl);
            }

        } else if (tokens.length == 2) {
            String arg = tokens[1];
            int index = arg.indexOf('=');
            if (index == -1) {
                Logger logger = LogManager.exists(arg);
                if (logger == null) {
                    buf.append("Bad log name: ");
                    buf.append(arg);
                    buf.append(nl);
                } else {
                    buf.append(logger.getName());
                    buf.append(':');
                    buf.append(logger.getLevel());
                    buf.append(nl);
                }
            } else {
                String[] nv = arg.split("=");
                String classname = nv[0];
                String levelStr = nv[1];

                Logger logger = LogManager.getLogger(classname);

                if (logger == null) {
                    buf.append("Bad log name: ");
                    buf.append(classname);
                    buf.append(nl);
                } else {
                    Level level = Level.toLevel(levelStr, null);
                    if (level == null) {
                        buf.append("Bad log level: ");
                        buf.append(levelStr);
                        buf.append(nl);
                    } else {
                        logger.setLevel(level);
                    }
                }
            }

        } else {
            buf.append("Bad command usage: \"");
            buf.append(mdxCmd);
            buf.append('"');
            buf.append(nl);
            appendSet(buf);
        }

        return buf.toString();
    }

    //////////////////////////////////////////////////////////////////////////
    // file
    //////////////////////////////////////////////////////////////////////////
    protected static void appendFile(StringBuffer buf) {
        appendIndent(buf, 1);
        buf.append("file [ filename | '=' ] <cr>");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With no args, prints the last filename executed.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"filename\", read and execute filename .");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"=\" character, re-read and re-execute previous filename .");
    }

    protected String executeFile(String mdxCmd) {
        StringBuffer buf = new StringBuffer(512);
        String[] tokens = mdxCmd.split("\\s+");

        if (tokens.length == 1) {
            if (this.filename != null) {
                buf.append(this.filename);
            }

        } else if (tokens.length == 2) {
            String token = tokens[1];
            String nameOfFile = null;
            if ((token.length() == 1) && (token.charAt(0) == EXECUTE_CHAR)) {
                // file '='
                if (this.filename == null) {
                    buf.append("Bad command usage: \"");
                    buf.append(mdxCmd);
                    buf.append("\", no file to re-execute");
                    buf.append(nl);
                    appendFile(buf);
                } else {
                    nameOfFile = this.filename;
                }
            } else {
                // file filename
                nameOfFile = token;
            }

            if (nameOfFile != null) {
                this.filename = nameOfFile;

                try {
                    commandLoop(new File(this.filename));
                } catch (IOException ex) {
                    setError(ex);
                    buf.append("Error: " +ex);
                }
            }

        } else {
            buf.append("Bad command usage: \"");
            buf.append(mdxCmd);
            buf.append('"');
            buf.append(nl);
            appendFile(buf);
        }
        return buf.toString();
    }

    //////////////////////////////////////////////////////////////////////////
    // list
    //////////////////////////////////////////////////////////////////////////
    protected static void appendList(StringBuffer buf) {
        appendIndent(buf, 1);
        buf.append("list [ cmd | result ] <cr>");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With no arguments, list previous cmd and result");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"cmd\" argument, list the last mdx query cmd.");
        buf.append(nl);
        appendIndent(buf, 2);
        buf.append("With \"result\" argument, list the last mdx query result.");
    }

    protected String executeList(String mdxCmd) {
        StringBuffer buf = new StringBuffer(200);

        String[] tokens = mdxCmd.split("\\s+");

        if (tokens.length == 1) {
            if (this.mdxCmd != null) {
                buf.append(this.mdxCmd);
                if (mdxResult != null) {
                    buf.append(nl);
                    buf.append(mdxResult);
                }
            } else if (mdxResult != null) {
                buf.append(mdxResult);
            }

        } else if (tokens.length == 2) {
            String arg = tokens[1];
            if (arg.equals("cmd")) {
                if (this.mdxCmd != null) {
                    buf.append(this.mdxCmd);
                }
            } else if (arg.equals("result")) {
                if (mdxResult != null) {
                    buf.append(mdxResult);
                }
            } else {
                buf.append("Bad sub command usage:");
                buf.append(mdxCmd);
                buf.append(nl);
                appendList(buf);
            }