From 7fdeab39832c2339711250dfb0a9a5c531ab7033 Mon Sep 17 00:00:00 2001 From: Chris Jaekl Date: Sat, 11 Jun 2016 17:54:23 +0900 Subject: [PATCH] Initial commit --- COPYING | 675 ++++++++++++++++++ README | 33 + pom.xml | 134 ++++ src/main/java/net/jaekl/squelch/Args.java | 113 +++ src/main/java/net/jaekl/squelch/Squelch.java | 83 +++ .../java/net/jaekl/squelch/sql/Column.java | 17 + .../java/net/jaekl/squelch/stmt/Query.java | 4 + .../java/net/jaekl/squelch/stmt/Select.java | 86 +++ .../java/net/jaekl/squelch/stmt/Stmt.java | 18 + .../net/jaekl/squelch/util/ConsoleInput.java | 7 + .../jaekl/squelch/util/ConsoleInputImpl.java | 20 + .../net/jaekl/squelch/util/ConsoleUtil.java | 30 + .../java/net/jaekl/squelch/util/FileUtil.java | 36 + src/test/java/net/jaekl/squelch/ArgsTest.java | 128 ++++ .../java/net/jaekl/squelch/SquelchTest.java | 75 ++ .../jaekl/squelch/util/ConsoleInputMock.java | 30 + .../jaekl/squelch/util/ConsoleUtilMock.java | 17 + .../java/net/jaekl/squelch/util/FileMock.java | 34 + .../net/jaekl/squelch/util/FileUtilMock.java | 68 ++ 19 files changed, 1608 insertions(+) create mode 100644 COPYING create mode 100644 README create mode 100644 pom.xml create mode 100644 src/main/java/net/jaekl/squelch/Args.java create mode 100644 src/main/java/net/jaekl/squelch/Squelch.java create mode 100644 src/main/java/net/jaekl/squelch/sql/Column.java create mode 100644 src/main/java/net/jaekl/squelch/stmt/Query.java create mode 100644 src/main/java/net/jaekl/squelch/stmt/Select.java create mode 100644 src/main/java/net/jaekl/squelch/stmt/Stmt.java create mode 100644 src/main/java/net/jaekl/squelch/util/ConsoleInput.java create mode 100644 src/main/java/net/jaekl/squelch/util/ConsoleInputImpl.java create mode 100644 src/main/java/net/jaekl/squelch/util/ConsoleUtil.java create mode 100644 src/main/java/net/jaekl/squelch/util/FileUtil.java create mode 100644 src/test/java/net/jaekl/squelch/ArgsTest.java create mode 100644 src/test/java/net/jaekl/squelch/SquelchTest.java create mode 100644 src/test/java/net/jaekl/squelch/util/ConsoleInputMock.java create mode 100644 src/test/java/net/jaekl/squelch/util/ConsoleUtilMock.java create mode 100644 src/test/java/net/jaekl/squelch/util/FileMock.java create mode 100644 src/test/java/net/jaekl/squelch/util/FileUtilMock.java diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..10926e8 --- /dev/null +++ b/COPYING @@ -0,0 +1,675 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. + diff --git a/README b/README new file mode 100644 index 0000000..a6ab058 --- /dev/null +++ b/README @@ -0,0 +1,33 @@ +SQueLch + +This is a simple console-based SQL client. +It is database-agnostic, and should work with any database for which you have a JDBC driver. + +To build it: + + $ mvn clean package + +To run it: + + Add your JDBC jar to your CLASSPATH, then: + $ java -jar ./target/squelch-0.1-SNAPSHOT-jar-with-dependencies.jar --help + +For example: + + $ java -jar squelch.jar -u chris -p passwordGoesHere -r postgresql:localhost/cfb + +Note that it's more secure to put your password in a config file instead, for example: + + $ cat >config.properties + db.user=chris + db.password=passwordGoesHere + db.url=postgresql:localhost/cfb + ^D + $ java -jar squelch.jar --config config.properties + +The code is available under the GNU General Public Licence (GPL) version 3, or (at your option) any later version. +See the file COPYING for details. + +*> Chris Jaekl +https://www.jaekl.net/chris/ + diff --git a/pom.xml b/pom.xml new file mode 100644 index 0000000..bd89ae1 --- /dev/null +++ b/pom.xml @@ -0,0 +1,134 @@ + + + 4.0.0 + net.jaekl.squelch + squelch + jar + 0.1-SNAPSHOT + squelch + http://maven.apache.org + + + + org.apache.maven.plugins + maven-jar-plugin + 2.2 + + + + org.apache.maven.plugins + maven-assembly-plugin + 2.2-beta-4 + + + jar-with-dependencies + + + + net.jaekl.squelch.Squelch + + + + + + package + + single + + + + + + org.apache.maven.plugins + maven-compiler-plugin + 3.0 + + 1.7 + 1.7 + + + + org.apache.maven.plugins + maven-surefire-plugin + 2.15 + + + ${surefireArgLine} + + ${skip.unit.tests} + + + **/IT*.java + + + + + org.jacoco + jacoco-maven-plugin + 0.6.5.201403032054 + + + + pre-unit-test + + prepare-agent + + + + ${project.build.directory}/coverage-reports/jacoco-ut.exec + + surefireArgLine + + + + + post-unit-test + test + + report + + + + ${project.build.directory}/coverage-reports/jacoco-ut.exec + + ${project.reporting.outputDirectory}/jacoco-ut + + + + + + + + + commons-cli + commons-cli + 1.3.1 + + + org.apache.commons + commons-collections4 + 4.1 + + + jline + jline + 2.14.1 + compile + + + junit + junit + 4.0 + test + + + diff --git a/src/main/java/net/jaekl/squelch/Args.java b/src/main/java/net/jaekl/squelch/Args.java new file mode 100644 index 0000000..9052734 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/Args.java @@ -0,0 +1,113 @@ +package net.jaekl.squelch; + +import java.io.File; +import java.io.IOException; +import java.io.InputStream; +import java.io.PrintWriter; +import java.util.Properties; + +import net.jaekl.squelch.util.FileUtil; + +import org.apache.commons.cli.CommandLine; +import org.apache.commons.cli.DefaultParser; +import org.apache.commons.cli.HelpFormatter; +import org.apache.commons.cli.Options; +import org.apache.commons.cli.ParseException; + +public class Args { + private static final String DB_URL = "db.url"; + private static final String DB_PASSWORD = "db.password"; + private static final String DB_USER = "db.user"; + private static final String DEFAULT_CONFIG_FILENAME = "config.properties"; + + private String m_className; // name of the main class that launches this program + private boolean m_help; + private String m_url; + private String m_pass; + private String m_user; + + public Args(String className) { + m_className = className; + m_help = false; + m_url = ""; + m_pass = ""; + m_user = ""; + } + + public boolean isHelp() { return m_help; } + public String getUrl() { return m_url; } + public String getPass() { return m_pass; } + public String getUser() { return m_user; } + + public Options createOptions() + { + Options opt = new Options(); + + opt.addOption("c", "config", true, "Config file"); + opt.addOption("h", "help", false, "Show usage information"); + opt.addOption("r", "url", true, "DB JDBC URL"); + opt.addOption("p", "password", true, "DB password"); + opt.addOption("u", "user", true, "DB username"); + + return opt; + } + + public boolean parseArgs(PrintWriter pw, String[] args) throws IOException + { + Options opt = createOptions(); + try { + CommandLine line = new DefaultParser().parse(opt, args); + + String configFilename = (line.hasOption("c")) ? (line.getOptionValue("c")) : (DEFAULT_CONFIG_FILENAME); + File configFile = FileUtil.getInst().newFile(configFilename); + if (configFile.canRead()) { + readConfigFile(configFile); + } + + m_help = line.hasOption("h"); + + if (line.hasOption("p")) { + m_pass = line.getOptionValue("p"); + } + if (line.hasOption("r")) { + m_url = line.getOptionValue("r"); + } + if (line.hasOption("u")) { + m_user = line.getOptionValue("u"); + } + } + catch (ParseException exc) { + usage(pw, opt); + return false; + } + + if (m_help) { + usage(pw, opt); + } + + return true; + } + + void readConfigFile(File configFile) throws IOException + { + Properties props = new Properties(); + try (InputStream is = FileUtil.getInst().openStream(configFile)) { + props.load(is); + } + + m_url = props.getProperty(DB_URL, ""); + m_pass = props.getProperty(DB_PASSWORD, ""); + m_user = props.getProperty(DB_USER, ""); + } + + // Note that this leverages commons-cli's HelpFormatter to + // generate the usage message. It will always be in English. + // If we want to localize that, we'd need to recode this, + // and also translate the parameter descriptions in + // createOptions(). + void usage(PrintWriter pw, Options opt) + { + HelpFormatter help = new HelpFormatter(); + help.printHelp(pw, 80, m_className, "", opt, 0, 0, "", true); + } +} diff --git a/src/main/java/net/jaekl/squelch/Squelch.java b/src/main/java/net/jaekl/squelch/Squelch.java new file mode 100644 index 0000000..5985338 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/Squelch.java @@ -0,0 +1,83 @@ +package net.jaekl.squelch; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.Locale; + +import net.jaekl.squelch.stmt.Select; +import net.jaekl.squelch.stmt.Stmt; +import net.jaekl.squelch.util.ConsoleInput; +import net.jaekl.squelch.util.ConsoleInputImpl; +import net.jaekl.squelch.util.ConsoleUtil; + +public class Squelch { + static final String PROMPT = "> "; + private static final Stmt[] READ_ONLY_STATEMENTS = { + new Select() + }; + + private Stmt[] m_statements; + + public Squelch() { + m_statements = READ_ONLY_STATEMENTS; + } + + public void doMain(String[] args) + { + ConsoleInputImpl ci; + try (PrintWriter pw = new PrintWriter(System.out)) + { + ci = ConsoleUtil.getInst().getInput(); + pumpLines(pw, ci); + } catch (IOException e) { + e.printStackTrace(); + } + } + + public static void main(String[] args) { + new Squelch().doMain(args); + } + + void pumpLines(PrintWriter pw, ConsoleInput ci) throws IOException { + String line = null; + while (true) { + boolean processed = false; + line = ci.readLine(PROMPT); + + for (Stmt statement : m_statements) { + if (statement.handles(line)) { + //statement.exec(conn, pw, line); + processed = true; + break; + } + } + + if ((!processed)) { + if (isQuit(line)) { + break; + } + // Unrecognized command + pw.println("??? \"" + line + "\""); + } + } + } + + boolean isQuit(String line) { + if ((null == line)) { + return true; + } + String trimmed = line.trim(); + if (trimmed.endsWith(";")) { + trimmed = trimmed.substring(0, trimmed.length() - 1).trim(); + } + String upperCased = trimmed.toUpperCase(Locale.CANADA); + + if ( "EXIT".equals(upperCased) + || "QUIT".equals(upperCased) + || "\\q".equals(trimmed) ) + { + return true; + } + return false; + } +} diff --git a/src/main/java/net/jaekl/squelch/sql/Column.java b/src/main/java/net/jaekl/squelch/sql/Column.java new file mode 100644 index 0000000..a10de3f --- /dev/null +++ b/src/main/java/net/jaekl/squelch/sql/Column.java @@ -0,0 +1,17 @@ +package net.jaekl.squelch.sql; + +public class Column { + private Class m_clazz; // type + private String m_label; + private int m_width; + + public Column(String label, Class clazz, int width) { + m_label = label; + m_clazz = clazz; + m_width = width; + } + + public String getLabel() { return m_label; } + public Class getType() { return m_clazz; } + public int getWidth() { return m_width; } +} diff --git a/src/main/java/net/jaekl/squelch/stmt/Query.java b/src/main/java/net/jaekl/squelch/stmt/Query.java new file mode 100644 index 0000000..cdf9a3f --- /dev/null +++ b/src/main/java/net/jaekl/squelch/stmt/Query.java @@ -0,0 +1,4 @@ +package net.jaekl.squelch.stmt; + +public abstract class Query extends Stmt { +} diff --git a/src/main/java/net/jaekl/squelch/stmt/Select.java b/src/main/java/net/jaekl/squelch/stmt/Select.java new file mode 100644 index 0000000..6d89af5 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/stmt/Select.java @@ -0,0 +1,86 @@ +package net.jaekl.squelch.stmt; + +import java.io.IOException; +import java.io.PrintWriter; +import java.sql.Connection; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.ResultSetMetaData; +import java.sql.SQLException; +import java.util.Locale; + +import net.jaekl.squelch.sql.Column; + +public class Select extends Query { + + @Override + public boolean handles(String line) { + if (null == line) { + return false; + } + + String s = line.trim().toUpperCase(Locale.CANADA); + return (s.startsWith("SELECT ")); + } + + @Override + public int exec(Connection conn, PrintWriter pw, String line) throws IOException, SQLException + { + int rowCount = 0; + + try (PreparedStatement ps = conn.prepareStatement(line)) + { + try (ResultSet rs = ps.executeQuery()) + { + rowCount = printFormatted(pw, rs); + + } + } + return rowCount; + } + + private Column[] getColumns(ResultSetMetaData metaData) + throws SQLException, ClassNotFoundException + { + int colCount = metaData.getColumnCount(); + + Column cols[] = new Column[colCount]; + for (int idx = 1; idx <= colCount; ++idx) { + String label = metaData.getColumnLabel(idx); + Class clazz = Class.forName(metaData.getColumnTypeName(idx)); + int width = metaData.getColumnDisplaySize(idx); + cols[idx] = new Column(label, clazz, width); + } + + return cols; + } + + private int printFormatted(PrintWriter pw, ResultSet rs) throws IOException, SQLException + { + try { + ResultSetMetaData metaData = rs.getMetaData(); + int rowCount = 0; + Column[] cols = getColumns(metaData); + + pw.println("----------------------------------"); + for (int idx = 1; idx <= cols.length; ++idx) { + pw.print("|" + cols[idx - 1].getLabel()); + } + pw.println("|"); + + while (rs.next()) { + for (int idx = 1; idx <= cols.length; ++idx) { + pw.print("|" + rs.getObject(idx)); + } + pw.println("|"); + } + pw.println("----------------------------------"); + pw.println("" + rowCount + " row(s) returned."); + + return rowCount; + } + catch (ClassNotFoundException exc) { + throw new SQLException(exc); + } + } +} diff --git a/src/main/java/net/jaekl/squelch/stmt/Stmt.java b/src/main/java/net/jaekl/squelch/stmt/Stmt.java new file mode 100644 index 0000000..fc090d4 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/stmt/Stmt.java @@ -0,0 +1,18 @@ +package net.jaekl.squelch.stmt; + +import java.io.IOException; +import java.io.PrintWriter; +import java.sql.Connection; +import java.sql.SQLException; + +/** + * Abstract base class for all statements (e.g., Insert, Create, Delete, Describe) + */ + +public abstract class Stmt { + // Returns true iff. line represents an instance of this statement type + abstract public boolean handles(String line); + + // Execute line as a statement of this type + abstract public int exec(Connection conn, PrintWriter pw, String line) throws IOException, SQLException; +} diff --git a/src/main/java/net/jaekl/squelch/util/ConsoleInput.java b/src/main/java/net/jaekl/squelch/util/ConsoleInput.java new file mode 100644 index 0000000..b357941 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/util/ConsoleInput.java @@ -0,0 +1,7 @@ +package net.jaekl.squelch.util; + +import java.io.IOException; + +public interface ConsoleInput { + public String readLine(String prompt) throws IOException; +} diff --git a/src/main/java/net/jaekl/squelch/util/ConsoleInputImpl.java b/src/main/java/net/jaekl/squelch/util/ConsoleInputImpl.java new file mode 100644 index 0000000..7466753 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/util/ConsoleInputImpl.java @@ -0,0 +1,20 @@ +package net.jaekl.squelch.util; + +import java.io.IOException; + +import jline.console.ConsoleReader; + +public class ConsoleInputImpl implements ConsoleInput { + private ConsoleReader m_reader; + + public ConsoleInputImpl() throws IOException + { + m_reader = new ConsoleReader(); + } + + @Override + public String readLine(String prompt) throws IOException + { + return m_reader.readLine(prompt); + } +} diff --git a/src/main/java/net/jaekl/squelch/util/ConsoleUtil.java b/src/main/java/net/jaekl/squelch/util/ConsoleUtil.java new file mode 100644 index 0000000..6116550 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/util/ConsoleUtil.java @@ -0,0 +1,30 @@ +package net.jaekl.squelch.util; + +import java.io.IOException; + +public class ConsoleUtil { + protected static volatile ConsoleUtil m_inst = null; + + ConsoleUtil() { + ; + } + + public static ConsoleUtil getInst() + { + ConsoleUtil result = m_inst; + if (null == m_inst) { + synchronized (ConsoleUtil.class) { + result = m_inst; + if (null == result) { + m_inst = result = new ConsoleUtil(); + } + } + } + return result; + } + + public ConsoleInputImpl getInput() throws IOException + { + return new ConsoleInputImpl(); + } +} diff --git a/src/main/java/net/jaekl/squelch/util/FileUtil.java b/src/main/java/net/jaekl/squelch/util/FileUtil.java new file mode 100644 index 0000000..615b734 --- /dev/null +++ b/src/main/java/net/jaekl/squelch/util/FileUtil.java @@ -0,0 +1,36 @@ +package net.jaekl.squelch.util; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.InputStream; + +public class FileUtil { + static volatile FileUtil m_inst = null; + + FileUtil() { + ; + } + + public static FileUtil getInst() { + FileUtil result = m_inst; + if (null == m_inst) { + synchronized(FileUtil.class) { + result = m_inst; + if (null == result) { + m_inst = result = new FileUtil(); + } + } + } + + return result; + } + + public File newFile(String filename) { + return new File(filename); + } + + public InputStream openStream(File file) throws FileNotFoundException { + return new FileInputStream(file); + } +} diff --git a/src/test/java/net/jaekl/squelch/ArgsTest.java b/src/test/java/net/jaekl/squelch/ArgsTest.java new file mode 100644 index 0000000..1b312c1 --- /dev/null +++ b/src/test/java/net/jaekl/squelch/ArgsTest.java @@ -0,0 +1,128 @@ +package net.jaekl.squelch; + +import static org.junit.Assert.*; + +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.OutputStreamWriter; +import java.io.PrintWriter; +import java.nio.charset.StandardCharsets; + +import net.jaekl.squelch.util.FileMock; +import net.jaekl.squelch.util.FileUtilMock; + +import org.junit.Test; + +public class ArgsTest +{ + private static class Result { + private boolean m_retVal; + private Args m_args; + private String m_stdout; + + public Result(boolean retVal, Args args, String stdout) { + m_retVal = retVal; + m_args = args; + m_stdout = stdout; + } + + public boolean getRetVal() { return m_retVal; } + public Args getArgs() { return m_args; } + public String getStdout() { return m_stdout; } + } + + @Test + public void test_variousParams() throws IOException + { + Result result = null; + + String[] noParams = {}; + result = runWithParams(noParams); + assertTrue(result.getRetVal()); + assertEquals(false, result.getArgs().isHelp()); + assertEquals("", result.getArgs().getUrl()); + assertEquals("", result.getArgs().getUser()); + assertEquals("", result.getArgs().getPass()); + assertEquals("", result.getStdout()); + + String[] helpOnly = { "--help" }; + result = runWithParams(helpOnly); + assertTrue(result.getRetVal()); + assertEquals(true, result.getArgs().isHelp()); + assertEquals("", result.getArgs().getUrl()); + assertEquals("", result.getArgs().getUser()); + assertEquals("", result.getArgs().getPass()); + validateUsageMessage(result.getStdout()); + + String[] oneTwoThree = { "-r", "one", "-u", "two", "-p", "three" }; + result = runWithParams(oneTwoThree); + assertTrue(result.getRetVal()); + assertEquals(false, result.getArgs().isHelp()); + assertEquals("one", result.getArgs().getUrl()); + assertEquals("two", result.getArgs().getUser()); + assertEquals("three", result.getArgs().getPass()); + assertEquals("", result.getStdout()); + + String[] invalid = { "--bogus" }; + result = runWithParams(invalid); + assertFalse(result.getRetVal()); + assertEquals(false, result.getArgs().isHelp()); + assertEquals("", result.getArgs().getUrl()); + assertEquals("", result.getArgs().getUser()); + assertEquals("", result.getArgs().getPass()); + validateUsageMessage(result.getStdout()); + } + + @Test + public void test_configFile() throws IOException + { + final String CONFIG_FILE_NAME = "configFileName"; + final String SIMPLE_CONTENT = "db.user=fred\n" + + "db.password=p455w0rd\n" + + "db.url=jdbc:postgresql://localhost/cfb\n"; + + Result result = null; + + FileUtilMock.mock_setInst(); + FileMock configFileMock = FileUtilMock.mock_getInst().mock_newFile(CONFIG_FILE_NAME); + FileUtilMock.mock_getInst().mock_setReadable(configFileMock, true); + configFileMock.mock_setContent(SIMPLE_CONTENT.getBytes(StandardCharsets.UTF_8)); + + String[] simple = { "-c", CONFIG_FILE_NAME }; + result = runWithParams(simple); + assertTrue(result.getRetVal()); + assertEquals(false, result.getArgs().isHelp()); + assertEquals("jdbc:postgresql://localhost/cfb", result.getArgs().getUrl()); + assertEquals("fred", result.getArgs().getUser()); + assertEquals("p455w0rd", result.getArgs().getPass()); + assertEquals("", result.getStdout()); + + } + + // We expect the stdout string to contain a usage message. + // Do some sanity-checking to ensure that it looks vaguely correct. + private void validateUsageMessage(String stdout) + { + assertTrue(stdout.contains(this.getClass().getName())); + assertTrue(stdout.contains("--help")); + } + + private Result runWithParams(String[] params) + throws IOException + { + try ( + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(new OutputStreamWriter(baos, StandardCharsets.UTF_8)); + ) + { + Args args = new Args(this.getClass().getName()); + boolean retVal = args.parseArgs(pw, params); + + pw.flush(); + baos.flush(); + String stdout = baos.toString(StandardCharsets.UTF_8.name()); + + return new Result(retVal, args, stdout); + } + } +} diff --git a/src/test/java/net/jaekl/squelch/SquelchTest.java b/src/test/java/net/jaekl/squelch/SquelchTest.java new file mode 100644 index 0000000..5a5c470 --- /dev/null +++ b/src/test/java/net/jaekl/squelch/SquelchTest.java @@ -0,0 +1,75 @@ +package net.jaekl.squelch; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; + +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.OutputStreamWriter; +import java.io.PrintWriter; +import java.nio.charset.StandardCharsets; + +import net.jaekl.squelch.util.ConsoleInputMock; + +import org.junit.Test; + +public class SquelchTest { + + @Test + public void test_isQuit() { + Squelch squelch = new Squelch(); + + final String[] AFFIRMATIVE = { + "QUIT", " QUIT", " QUIT ", "\tQUIT\r\n", "\\q", " \\q", "QUIT;", "Quit", "qUiT", " qUIt ", "quit ;", + "exit", "ExIT", "EXIT", " EXIT ; ", null + }; + final String[] NEGATIVE = { + "Fred", "SELECT * FROM FOO", "describe tablename", "", + "CREATE TABLE Fred ( foo INTEGER );" + }; + + for (String s : AFFIRMATIVE) { + assertTrue("isQuit(\"" + s + "\") should be true.", squelch.isQuit(s)); + } + for (String s : NEGATIVE) { + assertFalse("isQuit(\"" + s + "\") should be false.", squelch.isQuit(s)); + } + } + + @Test + public void test_pumpLines() throws IOException { + Squelch squelch = new Squelch(); + String consoleOutput; + + String[] noLines = {}; + consoleOutput = runPump(squelch, noLines); + assertEquals("", consoleOutput); + + String[] quitOnly = {"QUIT"}; + consoleOutput = runPump(squelch, quitOnly); + assertEquals(Squelch.PROMPT + "QUIT\n", consoleOutput); + + String[] unrecognizedThenQuit = {"This is not a valid command;", "\\q"}; + consoleOutput = runPump(squelch, unrecognizedThenQuit); + assertEquals(Squelch.PROMPT + "This is not a valid command;\n" + + "??? \"This is not a valid command;\"\n" + + Squelch.PROMPT + "\\q\n", + consoleOutput); + } + + private String runPump(Squelch squelch, String[] lines) throws IOException + { + try ( + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(new OutputStreamWriter(baos, StandardCharsets.UTF_8)) + ) + { + ConsoleInputMock cim = new ConsoleInputMock(pw, lines); + squelch.pumpLines(pw, cim); + pw.close(); + baos.close(); + return baos.toString(); + } + } +} diff --git a/src/test/java/net/jaekl/squelch/util/ConsoleInputMock.java b/src/test/java/net/jaekl/squelch/util/ConsoleInputMock.java new file mode 100644 index 0000000..476ebf9 --- /dev/null +++ b/src/test/java/net/jaekl/squelch/util/ConsoleInputMock.java @@ -0,0 +1,30 @@ +package net.jaekl.squelch.util; + +import java.io.IOException; +import java.io.PrintWriter; + +public class ConsoleInputMock implements ConsoleInput { + private int m_linePos; + private String[] m_lines; + private PrintWriter m_pw; + + public ConsoleInputMock(PrintWriter pw, String[] lines) throws IOException { + m_linePos = 0; + m_lines = lines; + m_pw = pw; + } + + @Override + public String readLine(String prompt) + { + if (m_linePos >= m_lines.length) { + return null; + } + m_pw.print(prompt); + m_pw.flush(); + String line = m_lines[m_linePos]; + m_linePos++; + m_pw.println(line); + return line; + } +} diff --git a/src/test/java/net/jaekl/squelch/util/ConsoleUtilMock.java b/src/test/java/net/jaekl/squelch/util/ConsoleUtilMock.java new file mode 100644 index 0000000..e8b78ad --- /dev/null +++ b/src/test/java/net/jaekl/squelch/util/ConsoleUtilMock.java @@ -0,0 +1,17 @@ +package net.jaekl.squelch.util; + +public class ConsoleUtilMock extends ConsoleUtil { + public static void mock_setInst() { + synchronized(FileUtil.class) { + m_inst = new ConsoleUtilMock(); + } + } + + public static ConsoleUtilMock mock_getInst() { + ConsoleUtil result = m_inst; + if (result instanceof ConsoleUtilMock) { + return (ConsoleUtilMock) m_inst; + } + throw new AssertionError("Mock not initialized?"); + } +} diff --git a/src/test/java/net/jaekl/squelch/util/FileMock.java b/src/test/java/net/jaekl/squelch/util/FileMock.java new file mode 100644 index 0000000..592df57 --- /dev/null +++ b/src/test/java/net/jaekl/squelch/util/FileMock.java @@ -0,0 +1,34 @@ +package net.jaekl.squelch.util; + +import java.io.ByteArrayInputStream; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.InputStream; + +public class FileMock extends File { + private static final long serialVersionUID = 1L; + + private byte[] m_content; + + public FileMock(String filename) { + super(filename); + + m_content = null; + } + + @Override + public boolean canRead() { + return FileUtilMock.mock_getInst().mock_canRead(this); + } + + public InputStream mock_openStream() throws FileNotFoundException { + if (null == m_content) { + throw new FileNotFoundException(this.getAbsolutePath()); + } + return new ByteArrayInputStream(m_content); + } + + public void mock_setContent(byte[] content) { + m_content = content; + } +} diff --git a/src/test/java/net/jaekl/squelch/util/FileUtilMock.java b/src/test/java/net/jaekl/squelch/util/FileUtilMock.java new file mode 100644 index 0000000..67b8463 --- /dev/null +++ b/src/test/java/net/jaekl/squelch/util/FileUtilMock.java @@ -0,0 +1,68 @@ +package net.jaekl.squelch.util; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.InputStream; +import java.util.HashMap; + +public class FileUtilMock extends FileUtil { + private HashMap m_readable; + private HashMap m_files; + + private FileUtilMock() { + m_readable = new HashMap(); + m_files = new HashMap(); + } + + public static void mock_setInst() { + synchronized(FileUtil.class) { + m_inst = new FileUtilMock(); + } + } + + public static FileUtilMock mock_getInst() { + FileUtil result = m_inst; + if (result instanceof FileUtilMock) { + return (FileUtilMock) m_inst; + } + throw new AssertionError("Mock not initialized?"); + } + + @Override + public File newFile(String filename) { + return mock_newFile(filename); + } + + @Override + public InputStream openStream(File file) throws FileNotFoundException { + if (file instanceof FileMock) { + return ((FileMock)file).mock_openStream(); + } + return new FileInputStream(file); + } + + public FileMock mock_newFile(String filename) { + File file = new File(filename); + String absFilename = file.getAbsolutePath(); + FileMock fileMock = m_files.get(absFilename); + if (null == fileMock) { + fileMock = new FileMock(filename); + m_files.put(fileMock.getAbsolutePath(), fileMock); + } + return fileMock; + } + + public void mock_setReadable(File file, boolean readable) { + m_readable.put(file.getAbsolutePath(), Boolean.valueOf(readable)); + } + + public boolean mock_canRead(FileMock fileMock) { + Boolean readable = m_readable.get(fileMock.getAbsolutePath()); + if (null == readable) { + return false; + } + + return readable.booleanValue(); + } +} -- 2.30.2